2 Hop Quick Step Trainer

The patent-pending 2-HOP is a training aid many have dreamed about. For parents, coaches, and teaching pros who are tired of telling players to “Get on your toes” this training aid is PERFECT! Fits children’s shoe size 3 and larger. Designed by tennis professional Grant Rolley.
The 2-HOP works easily. Just slide the two buzzing inserts into any pair of sneakers. There is a 2-second delay timer that allows players to actually step solidly to hit balls. It won’t “buzz” unless, of course, you don’t recover to get ready for the next shot. However, wait too long for a serve on your heels or stand still after any shot for more than 2 seconds and you’ll be reminded with an audible “buzz” plus you’ll feel a strong vibration inside your shoes!
Includes replaceable battery.