When I needed to thoroughly clean my Yeti cup. This definitely is easy to handle and cleans out my cup very well. It works as the seller describes below.
The Advantages of this bottle brush:

-Easily clean all aspects of the bottle, straw, and cap of your stainless steel water bottle
-3 tools in one, big brush for cleaning the inside, brush for cleaning smaller bottles and cap.
-Unique design and feel
-Helps prevent bacteria and mold in your bottle. Allows for very easy and fast cleaning
-Perfect size – Not too big, not too small!
-Durability -Very strong and solid build
-Long lasting water bottle brush
-Odor Resistant, easy clean
-Light-weight, yet strongest durable
-Professional finish
Safely clean your stainless steel water bottles and accessories.

Review By T Win on August 28, 2016

September 21, 2016 — Shopify API