Amazon.com : Adjustable Hex Dumbbells, Rubber Hex Dumbbells Free Sporteq Hex Dumbbells Set for Gym, Home Exercises Rubber Encased Shop Hexagon Dumbbells Hex Weight SuperStrong Shop Hexagon Dumbbells Hex Weight SuperStrong. To stay in shape, get your dream body shape, or just take an hour and a half to concentrate on yourself. Whatever goals you set for yourself in sports, dumbbells are sure to help you with it. Suitable for sports activities at home, gym, outside Dimensions: 18 * 3. 9 * 3. 9cm Material: soft touch silicone on the outside and metal on the inside Color: black Weight: 1. 5kg per piece.