Description:1. The tubing is made of Nitrile Butadiene Rubber material, soft and durable, can be used repeatedly2.Rubber Material - The tubing is made of Rubber material, soft and durable, can be used repeatedly. Working temperature is -40°C to 80°C(-40°F to 176°F)3. High elasticity, strong tensile, easy to bend, and aging resistant4. Anti-skid foam is fixed on tools or appliances and is not easy to slip5. It is used to protect the handle, such as for fitness equipment, utensil, etc. heat preservation insulated for pipe, increase the softness, anti-skid and wear resistance, heat insulationSpecification :Size：Inner Dia x Outer Dia 50mm/2-inch x 65mm/2.56-inch36mm/1.42-inch x 48mm/1.89-inch30mm/1.18-inch x 40mm/1.57-inch28mm/1.1-inch x 38mm/1.5-inch 25mm/1-inch x 35mm/1.