desk grommets. 1. OEM is welcomed. 2. Small order is accepted. 3. Qualified supplier of some famous brands. Details of silicone desk grommets:1. Materials: comply to ROHS, Silicone (VMQ), or NBR, EPDM, Viton, etc.2. Temperature: -40~220°C. 3. Hardness: 20 to 80 shore A or as your requested. 4. Tolerance: strictly upon international standard, no flash.5. Color: black, transparent, green, red, ...