The hexagonal shape of the dumbbell heads prevents them from rolling when not in use.
Barbell 32 lb Neoprene Dumbbell Set with Rack, Black
XPRT Fitness 32 lb. Neoprene Dumbbell Set with Storage Rack
3, 5, 8 lb Neoprene Dumbbell Set with Rack - Home Gym Weights Fitness Equipment
CAP Barbell Neoprene Dumbbell Set with Rack, 20 Pounds, Black
Easter CAP 20lb Neoprene Dumbbell Set with Rack
