







🟣 Elevate your fitness game with the power of 4 tubes — resistance that moves with you!
The Upgrade 4-Tube Natural Latex Sit-up Expander by calliven features four high-elasticity NBR tubes for enhanced resistance training. Designed for versatile use in home, office, or travel, it offers ergonomic foam handles and adjustable tension to safely tone and sculpt abdomen, waist, arms, and legs. Lightweight and durable, this purple pedal resistance band supports effective fat burning, flexibility, and injury prevention.









| Brand | calliven |
| Material | Natural Rubber |
| Color | Purple |
| Sport | Exercise And Fitness/Stretching/Yoga |
| Recommended Uses For Product | Home |
| Special Feature | Adjustable |
| Product Dimensions | 20.86"L x 9.84"W |
| Style | Pedal resistance band |
| Number of Resistance Levels | 1 |
| Manufacturer | WZMF |
| UPC | 609239160730 |
| Item Package Dimensions L x W x H | 12.76 x 9.37 x 4.17 inches |
| Package Weight | 0.26 Kilograms |
| Item Dimensions LxWxH | 20.86 x 9.84 x 0.04 inches |
| Brand Name | calliven |
| Part Number | 4350147392_SML |
| Size | 20.86×9.84" |
T**D
Easy to Use
The sturdiness of the product could be more durable but overall it is very easy to use and a effective. I like it.
L**A
Glad I Bought This
I think this is a great alternative to just the resistance bands. It's a good device to have to just do a few workouts while watching TV or just sitting on the couch. I love that you can work out multiple areas of your body with just this one product! It also comes with a helpful display of exercises you can do.I've suggested this product to people who are unable to go to the gym or workout because of a bad heart, as this really doesn't get your blood pressure up but you can definitely feel it working!
K**G
great product
Nice product came with a storage bag and also a band, true colors as the ad photo, I really like this purplish color. Affordable workout equipment with great quality. It is easy to use which you can workout while listen music or watch TV.
P**L
Easy to use, arrived on-time, but not as sturdy as I hoped for
The product was easy to use, and not very expensive, but overall, very spongy, not much resistance in the bands, and they don't stretch that far. The advertising over promised on the item - was excited to try, but disappointed in the performance. Better for arms than the other body parts.
M**C
Worst product
This product is no good, it is falling apart and it made me damaged myself as the orange button came off foot paddle. I will like a refund please. tell me how to return it. It's a darn toy. no star rating . It wouldn't let me submit without a star rating. There is not even a half star rating for this product.
K**R
Confidence Builder, Stomach size decrease, independent
I am happy I purchased this product. I was having a hard time doing the sit-ups on my own. I needed assistance. Sometimes there was no one around to hold my feet. But now I can do it in my own. In addition to becoming independent, I lost some “stomach weight “ and the instructions gave other potential exercises that can be done
K**R
Waste of money.
The bands on this device are very weak. They offer almost no resistance. These might be good for someone who is totally out of shape that has no strength.
J**E
Great product for a great price!
I love my resistance band! It’s made with durable materials and is definitely worth the money! I use this product aggressively and it has held up for many weeks. If you’re looking for a product to make your workouts more impactful, this is the product for you!
Trustpilot
1 month ago
3 weeks ago