Made in Japan pet bottle cap, blue, usable from 1.5 years old. - Brand: Randy - Product Name: JuicyCap - Target Age: 1.5 years old ~ - Compatible Diameter: 20-24mm - Color: Blue New, unused, and unopened. I bought it because washing water bottles was a hassle, and it was so convenient that I bought multiple. After that, it became unnecessary as my child grew, so I am selling it. It has few parts to wash and is very easy to use by attaching it to a plastic bottle to drink from. Purchased from Co-op.