Bounce no Bounce Balls 1 inch
"Steve Spangler Bounce-No-Bounce Balls Two rubber balls that look, feel and squeeze the same... but try bouncing them! One rebounds in a most lively manner while the other...well...it`s about as bounceless as a piece of clay! Highly visual, golf ball size, perfect for palming or sleeving and great for any size audience!"
Steve Spangler Science