Rubber set 1.rubber product rubber feet 2.good quality rubber meterial 3.ISO9001:2000 4.SGS,ROHS rubber foot features"Attention:Custom-made is welcomed! Also ... trial order before mass production. 1. Materials advice: silicone and rubber (EPDM, also NBR, SBR, CR, NR, etc),as your request ... bag inside, strength carton outside, or as your request.Pictures: Rubber set