Hampton Jelly-Bell Urethane Dumbbells - Jelly-Bell Urethane Dumbbells have superior durability compared to neoprene and vinyl dumbbells. Jelly-Bells are sleek and stylish as well as convenient, comfortable and colorful. Jelly-Bells are brightening the landscape of group fitness and are made of a highly durable urethane. Jelly-Bells come in 2.5 lb. increments from 2.5 lb. to 15 lbs., and half sizes are color-coded for easy identification. Jelly-Bells feature Gel Grip Handles, the most comfortable, ergonomic grip in free weights.