High quality design: 2 kg (kg x 2 ) weights stay tight and do not detach, rubber coating will not damage floor or other surfaces Materials: Solid cast iron, chrome plated handle and rubber coated weights Versatile: Designed for use with curls, lifts, squats, press, and more Safe: Flat hexagonal surfaces will prevent rolling and knurled handle prevents slipping Durable: No maintenance required, long lasting finish prevents rust In-box Contents: rubber barbell hex dumbbell with metal handles