Mason Bottle

Cap for Metal Mason Jar Rings

53 reviews
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The Mason Bottle Plastic Cap will fit over the Ball brand metal ring on any regular-mouth mason jar. 

    - 1 clear plastic cap to fit Metal Mason Jar Rings

    - Prevents leakage when secured over the Mason Bottle Silicone Nipple
    - Protects and keeps the nipple sanitary while on the go
    - Dishwasher-safe

    100% Satisfaction Guarantee

    With most brands, if your baby doesn't take the nipple, there's no returning the bottle. But at Mason Bottle, we never want parents to have to worry about this. 

    We are the only bottle brand where you can return any product, at any time, for any reason.


    Customer Reviews
    4.7 Based on 52 Reviews
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    • Mason Bottle
    Krista S.
    United States

    Great Cap

    Bottle cap fits snuggly and is easy to clean. This works with the metal rings.

    harpreet s.
    United States United States

    Could be better

    So happy to finally have a cap for the nipples but the caps don’t always 100% of them time fit on the metal ring. Only one side actually pops in and locks …. if you’re lucky. If there is a trick, I would be open to learning but I’ve had these almost a month, and they are still weird to use.

    Mason Bottle Cap for Metal Mason Jar Rings Review

    Mason Bottle

    Hi Harpreet! Oh no, this must be frustrating! Please email, and we would be happy to help.

    United States United States

    Very secure lid!

    I loved my plastic rings with lids and was hoping for something similar for the metal lids. Sure enough, Mason Bottle makes one so I ordered it. At first I thought it wasn’t working & leaking, but my husband showed me that I just wasn’t pushing it on hard enough! I thought if I pushed too hard I might break some of the snaps, but that wasn’t the case. Very durable, very secure, and now that I’m used to it, it’s easy to take off and on! (Customer service was very gracious when I thought I had a defective product. Luckily I realized it was my fault it wasn’t snapping on all the way!)

    Cynthia M.
    United States United States


    It's great and works well. Very secure

    Lindsey L.
    United States United States

    No spills!

    I use this cover over both the nipples and the straws for when we head out. I'm still midful of it not being upside down and tossed around but so far I haven't had any spills! It works great!