... . Hardness: Durometer 40-90 Shore A 3. Size: The same as your design, drawing, 1. Material: Silicone, EPDM, NR, NBR, SBR, CR ... as your design, drawing or sample. 4. Color: Black, white, Transparent, gray, green, yellow, blue, red etc. 5. Logo & Printing: According to your request ... ODM is welcomed. Please contact us to know details. Custom rubber seal