We specialized in stength and fitness products, dumbbell is one of our best items,includes plastic dumbbel and neoprene dumbbell V-2105-C-1 neoprene dumbbellsMaterials: cast iorn, neoprene coverdUsage: helps to improve muscle tone and core strengthSize: with adjustable weight from 5kg-40kgColor: colors per customers' requirementsminimized for the body ang floor Neoprene dumbbells