Vitos Fitness TPU Urethane Commercial Dumbbells Hardened Chrome Handle 5 LB Pair (5)Multifunctional: The round end dumbbell can thin arm, has the obvious effect in the back muscle, the shoulder line sculpture. As the gravity assist, let the lower body movement has the effect more. Comfort: Grasping rod adopts electronic welding, firm and hands friendly, will not become loose after long term use, ensuring the stability and durability. TPU material not easily deformed. Choices: The dumbbell weight ranges from 5 150 lb, pairs only.