Featuring a new dumbbell design with enlarged hex-shaped ends to promote proper pick-up using the middle of the bumper. Product Features SIX FLAT SIDES OFFER DOG EASY GRIP AND HOLD VGRIPS PROMOTE SOFT MOUTH WITH EASIER HOLD FIRMER FEEL HELPS REDUCE CHOMPING TENDENCY EVERLASTING LEAK-PROOF VALVELESS DESIGN 10 FLOATING THROW ROPE ATTACHED DIMENSIONS: 10 LENGTH / 3 ENDS / 2 CENTER