... we welcome trial order before mass production. 1. Materials advice: silicone and rubber (EPDM, also NBR, SBR, CR, NR, etc),as your ... mold, usually in1- 2 weeks6. Color: black, transparent,red, blue,any in PMS,Especially for the silicone products.7 .Hardness: 30 to 90 ... bag inside, strength carton outside, or as your request.Pictures: Rubber Foot in White Color