A soft ball on an elastic cord attached to a headband. Punch it and it snaps straight back at you, so you have to track it and hit again. Great for timing, accuracy, and hand-eye coordination, and it's fun enough that kids will use it too.
Adjustable headband fits adults and kids
Soft ball, safe to use indoors
Takes up zero space, works anywhere
Start slow, find the rhythm, then speed it up. One percent faster every day.
