composed of premium rubber Perfect for usage at home Versatile exercise options are made possible by our heavy duty bands, which make it simple to adjust weights. Weights that are provided: Two 0.25 kg, two 0.50 kg, and two 2.50 kg discs Comes with a 25mm disc hole and a 25cm short bar. Brand name Black, 10 kg, adjustable rubber dumbbell; item weight; material: rubber