Regular Mouth Mason Jar Pump Top Sets for Soap or Lotion. Each Food Grade DIY Kit Includes 100% Rust Proof Lid and Pump, Collar Ring, and Extra Long 9 Inch Straw and Leakproof Gasket (1 Set - Copper)

I got this to fit on a vintage ball jar..while a little loose, it can be tightened by putting a washer or rubber bands on jar threads

Having received my 2-pump set yesterday, I'm eager to post a review in support of those reviewers who've posted comments to the effect of: "Finally, a Mason jar pump that actually works!"After a long search at Amazon -- including my hapless purchases of pumps that arrived broken, rusted, and/or missing key parts -- I'm happy to report that this set appears to be the real deal: a durable, well-made product.The set arrived intact and well-packaged. The long straw on each pump is sturdy, fits into the main section of each pump securely, and can be cut to fit a variety of regular-mouth Mason jars. (I cut mine to fit my quart-sized Mason jars.) The assembly of straw to main section was quick and easy. The assembled pumps seemed sturdy, and fit nicely onto my quart-sized Mason jars -- which I promptly filled with Mrs. Meyers Clean Day Hand Soap and placed atop my bathroom and kitchen sinks. Success!Over the past 24 hours, these pumps have stood up to heavy use in my bathroom and kitchen -- including several hours of repeated use during a plumber's maintenance visit -- with no problems. The metal parts appear to be rust resistant, just as the manufacturer and seller promise. However, if rust develops -- many an allegedly rust-free metal pump has met its Waterloo in my apartment, as the steam in my bathroom and the acidity in Mrs. Meyers brand soaps has a tendency to expose pretenders quickly -- I'll post a follow-up review.In the meantime, I couldn't be happier with this purchase and am glad that I made it. I consider this set a great find after a year of searching -- and several disappointing purchases of competing products -- at Amazon. I'm grateful that these are available. Hooray!

I've had these 5 months now and so far they haven't rusted, which means they are way better than the home-made versions I tried before. I wish the spout was just a hair longer, but I tip my mason jar ever so slightly so the soap goes in the sink instead of the side of the jar and it works perfectly. No complaints of clogging, either (which seems to happen by 5 months also with other dispensers).

These jar pumps are great! I love that they came with a really long straw so you can cut it to any jar size. I even had to trim them down for quart jars. I put soap in one jar and lotion in another. It looks so nice and tidy! So far no rust or staining after several months.

These are the best soap dispensers I've ever used. The dip tube is about twice as long as is needed to reach the bottom of a quart mason jar. These are not rustproof, but they are rust-resistant. Small spots of rust show up, but they simply and completely wipe away. Highly recommended.

This is a great pump for a Mason jar. The top (the actual pump part) lifts right out of the lid though. The lid is nice and sturdy though, it doesn't cave in when you pump for soap.

I ordered two of these on two separate occasions. The first came with everything and worked perfectly. So I ordered another one. The second one was missing the straw piece, so I don't know if I will be able to use it. I'm not sure how to reach out to the seller to remedy this as there is no contact information readily available. :/

Took me a few minutes to figure out, because the pump that I grabbed first had the collar ring already screwed inside of the top...LOL. Once, I figured that out and unscrewed the collar ring, I got it together in no time flat. I'm using it with a Ball jar for my mouthwash in my bathroom. Added a "Shot Glass" for a cute effect.