... quality. 3. Certification: ISO9001:2008, ISO/TS16949. Details of rubber foot: 1. Materials: comply to ROHS, NBR, Silicone (VMQ), EPDM, Viton ... (E) M-Class or as your requested.4. Color: black, transparent, green, red, yellow, grey, purple, pink or as your requested ... develop the design based on your idea. Aging-proof Rubber Foot