--- product_id: 13337283 title: "Slam Ball" brand: "jfit" price: "¥23847" currency: JPY in_stock: true reviews_count: 8 category: "Jfit" url: https://www.desertcart.jp/products/13337283-slam-ball store_origin: JP region: Japan --- # 9-inch precision diameter Weighted from 10-50 lbs Durable multi-layer rubber shell Slam Ball **Brand:** jfit **Price:** ¥23847 **Availability:** ✅ In Stock ## Summary > 💥 Slam Hard, Train Smart – Own Your Fitness Edge ## Quick Answers - **What is this?** Slam Ball by jfit - **How much does it cost?** ¥23847 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13337283-slam-ball) ## Best For - jfit enthusiasts ## Why This Product - Trusted jfit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Grip & Go:** Textured rubber shell ensures a secure hold for fast, explosive movements - • **Elevate Your WODs:** Transform your workouts with slam ball speed and power - • **Custom Weight Options:** Choose from 10 to 50 lbs to match and grow with your strength - • **Total Body Conditioning:** Boost aerobic capacity, muscle mass, balance, and posture in one tool - • **Built to Slam, Built to Last:** Engineered for thousands of high-impact slams without losing shape ## Overview The JFIT Slam Ball is a premium 9-inch diameter, dead-weight training ball available in 10 to 50 lbs. Designed with a durable multi-layer rubber shell, it withstands thousands of high-velocity slams without bouncing or losing shape. Perfect for cross training, it enhances cardiovascular endurance, muscle mass, balance, and posture, making it an essential tool for serious athletes and fitness enthusiasts aiming to elevate their WODs. ## Description Don't Just Throw, Slam: Introducing The j/fit Dead Weight Slam BallThe practice of ball throwing has been an integral part of fitness since the ancient times.Cross training has popularized the method and j/fit has perfected it, by creating the best dead weight slam ball you could ever have.Med vs. SlamWhat's the difference? In essence, slam balls are designed for speed and high velocity impact. They also feel like dead weight, provide no bounce or elasticity; and help you perform a wider range of exercises.No med ball can sustain the kind of handling a slam ball does, as you can slam it to the ground, THOUSANDS of times, without it losing its shape or breaking. What Makes Our Slam Ball Stand Out? It all starts with choosing the finest quality materials and ensuring each ball upholds our high manufacturing standards. Featuring a grippy outer shell, expertly weighted and build to last, our slam ball will become your new WOD staple. Slam Those BenefitsChallenging every single muscle group in your body, slam balls enhance your agility, balance and strength, while they improve your reflexes, coordination, posture and cardiovascular system. Ideal for solo or partner exercises, our slam balls are perfect for rotational ab work, chest presses and passes, while they are also great for decompressing after long, stressful days! Which Size Is Best? As a general guideline, females can choose between the 10-25 lb range, while males can choose between the 30 – 50 lb range, according to strength levels. Revolutionize Your WODs, Today! Grab Your Own Slam Ball NOW, While Supplies Last! Review: Pefect quality for working out - Perfect for what you get. Great quality and good value. Love to use this when I workout. Perfect slam ball and great quality. durable and sturdy. perfect size for my husband and me Review: Solid and great quality slam ball - Solid, decent quality slam ball. They do not bounce back which is exactly what I need for my training. Great price too. ## Features - TAKE YOUR WODS TO THE NEXT LEVEL: Cross training is founded on innovation and variety – and our slam ball helps transform your WODS and quickly advance cross training levels, all while letting you reap all of its benefits with unprecedented ease. - BOOST YOUR AEROBIC CAPACITY: Slam ball workouts tone the cardiovascular system, enhance circulation and dramatically improve your strength and endurance. By moving at a high speed, you push your body towards producing more power – and FAST. - BUILD MUSCLE MASS & ATTAIN PERFECT BALANCE: Slam balls add a layer of resistance to exercises which traditionally rely on bodyweight. They naturally increase muscle mass and improve posture and balance, through aiding in regulating movement patterns. - ENGINEERED FOR PRECISION & DURABILITY: Simply the highest quality slam balls on the market. Our slam balls have gone through over 10 re-designs throughout the years, aiming for perfection and both indoor and outdoor exercise precision. - CHOOSE YOUR SIZE: Our 9" diameter balls are offered in 10-lb, 15-lb, 20-lb, 25 lb, 30 lb, 35 lb, 40 lb and 50 lb sizes. Get one now according to your strength level and come back to buy more, as your endurance increases! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CRYJSDC | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #262,588 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #80 in Strength Training Medicine Balls | | Brand | JFIT | | Brand Name | JFIT | | Color | Classic Black | | Construction Type | multi-layer | | Customer Reviews | 4.6 out of 5 stars 1,385 Reviews | | Global Trade Identification Number | 00818020000685 | | Included Components | Slam Ball | | Item Diameter | 9 Inches | | Item Type Name | Slam Ball | | Item Weight | 30 Pounds | | Manufacturer | JFIT | | Manufacturer Part Number | J-DWSB30 | | Material | Rubber | | Material Type | Rubber | | Model Number | J-DWSB30 | | Number of Items | 1 | | Recommended Uses For Product | Slam ball exercises, workouts involving slam balls | | Size | 30 LB | | Sport | Exercise & Fitness, Weightlifting | | Sport Type | Exercise & Fitness, Weightlifting | | Stitching Type | High strength | | UPC | 818020000685 | | Unit Count | 1.0 Count | | Warranty Description | 30 Day Amazon Return | ## Product Details - **Age Range (Description):** Adult - **Brand:** JFIT - **Color:** Classic Black - **Item Weight:** 30 Pounds - **Material:** Rubber ## Images ![Slam Ball - Image 1](https://m.media-amazon.com/images/I/917hKllhy2L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pefect quality for working out *by E***C on March 16, 2025* Perfect for what you get. Great quality and good value. Love to use this when I workout. Perfect slam ball and great quality. durable and sturdy. perfect size for my husband and me ### ⭐⭐⭐⭐⭐ Solid and great quality slam ball *by D***M on August 15, 2025* Solid, decent quality slam ball. They do not bounce back which is exactly what I need for my training. Great price too. ### ⭐⭐⭐⭐⭐ Definitely worth its weight! *by A***I on August 6, 2015* My personal trainer recommended this and for the price point and quality, I am sure glad he did! It has a good grip, its high in quality, and its perfect for the purpose it serves. With Amazon Prime, it's Amazing how they get this heavy ball to you as fast and easy as they do (Prime only available on some weight options). My trainer has a lot of experience with different types of gym equipment and he said when it comes to weight balls, this is your best bang for the buck. I am not a gym rat or anything, just an average guy trying to get into shape and the weight of this ball seems perfect for cardio and cross training. It is also very versatile as there are many variations of exercises you can do with it. j/fit seems like a great company with wonderful insight in fitness gear and a great customer support staff (they follow up with you and back their products up). Whether you want to start training at home or are a gym junkie, this ball will do it! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/13337283-slam-ball](https://www.desertcart.jp/products/13337283-slam-ball) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-26*