PROMIC Hand Weights Dumbbells (1-20LB) Non Slip, Multi Color Available (Sold in Pair) Solid Cast Iron Core: Constructed of gym professional quality cast iron core to increase durability, toughness and stability. Strong construction will not break or bend after repeated use. Non-slip Vinyl/Neoprene Coating Finish: Cast iron dumbbells are vinyl or Neoprene coated for durability and to provides a comfy grip on hands and doesn't require gloves and to protect you, the floor, other fitness equipment and your workout area, plus it reduces noise. Color Coded Dumbbells with Innovative Anti Rolling Shape: Multi Color hand weights with printed weight number on end caps for easy identification while special hexagonal shaped heads prevent rolling away from the storage place or during your floor exercise. Great for Total Body Workout: Ideal to tone and sculpt your arms, shoulders, and back, strengthen muscles, build stamina, train resistance and speed up metabolic rate. Order Now! Worry Free! We offer a Better than money back guarantee. If there is a problem with your dumbbells for any reason, we will Assist You with a Full Refund and Send You a New One.