High-quality materials: our product is made of high-quality spring steel and has excellent spring force. The surface of the spring is chrome plated and marked by corrosion resistance, rust protection and anti-oxidation, which makes the expander look very pretty and also easy to clean. The handle is made of environmentally friendly PP materials, durable, non-slip and wear-resistant
5-speed adjustable: Dbreaks expander is equipped with 5 removable springs and the clamping force of each spring is 5 kg. During training, you can reduce or increase the number of springs as needed to adjust the resistance