Hex-shaped, roll-free neoprene coated hand weight dumbbell set for bodybuilding, sculpting, and strength training exercises Each piece is sold. coated in neoprene at ease during physical activity superior cement filling Trade name: cement-filled hex dumbbells Exterior Material: Neoprene and Cast Iron Weight of Item: 1, 2, 3, 4, 5, kg Colors: red, black, and turquoise