The Dura-Bell from Hampton Fitness offers one of the most exceptional innovations in the fitness industry since the grip plate. Dont be fooled by substandard imitations the structural integrity of the Dura-Bell Dumbbell is guaranteed! Hampton Fitness holds the U.S. patent on a round cylinder head that is screwed onto the end of a solid dumbbell handle then reinforced with a quarter-inch roll pin through the head and handle itself. This dumbbell is guaranteed not to come loose! Hamptons competitors use hexagon-shaped heads and Urethane-coating. And unlike its competitors Hampton exclusively uses non-porous urethane. Bring home the incredible guaranteed quality of the one and only Dura-Bell Dumbbell. Hampton was the first company to introduce this type of dumbbell to the marketNon-porous Urethane is easier to clean more hygienic and longer lasting than rubber.No toxic smell like other rubber dumbbellsThe 30 mm Ergonomic hardened Chrome Handles are secured to the heads of Dura-Bell dumbbells with patented processSold In pairs Size-12.5 lb Pair