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Water Bottle Cap
This is a simple 3D-printed tethered bottle cap that screws onto any bottle with a 28mm thread. I reuse Smartwater bottles, and I really like not having to keep up with my lid or worry about setting it down and walking away.
Buy on Geni
You'll be taken to Geni to complete your purchase.
Pros
- +Keeps the lid attached so you don’t lose it
- +Works with common 28mm-thread bottles
- +Simple, practical upgrade for bottle users
Cons
- -Still relies on using plastic bottles
- -Could be redundant if you’re already careful with lids
