we can supply any kinds pu rod. above φ10mm,every 5mm as one size Their characteristic as follows:abrasion-resistance,high resilience,high extensibility,high elasticity,wide range of hardness(A15 to D70,extensibility can be increased by 400 to 800 percent.)adn resistance to oil,acid,alkali,ray radiation as well.widely used as insulation adn damping in hardware,machine,clectrical products