... Comply with ROHS, NBR, Silicone (VMQ), EPDM, Viton, etc.Characteristics Good physical and chemical properties.Hardness 20 to 90 shore A ... , grey, purple, pink or as your requested.Quantity Small order is accepted.Sample charge Free samples are available if standard size ... your new projects with high efficiency.5. Small order quantity is welcomed. Good rubber grommet