Great exercise toy for throwing and retrieving in a supervised setting.
Same size as a tennis ball ... comfortable for the dogs and works with most tennis ball throwers.
Replaceable batteries - turn on and off by pressing and holding switch.
Comes with batteries (CR 2016V). Batteries on sale at half price
Water resistant and floats
Made of extra durable rubber to stand up to repeated use (not intended as a chew toy)
Disco changes colors
The balls are the size of a tennis ball
They are made of durable, safe rubber and are designed to be not chewable
They are hard to turn on by design. They have to not turn off while dogs fetch them and during play
The best way to turn the ball off and on is by putting it on a table top, rotating it so the battery circle is up, and press down with your palm.
They are water resistant not waterproof. Customers have placed a piece of duct tape over the battery pack when throwing it into water and report good results