cap lid 1.Made of 100%silicone 2.Available in design and color 3.Precisely silicone washer mold design 4.OEM/ODM silicone cap features ... : Attention:Custom-made is welcomed! 1. Materials advice: silicone and rubber (EPDM, also NBR, SBR, CR, NR, etc),as ... samples,welcome any shape.5. Rapid development line, from drawing, new tool designs to mold support and samples.Technical service: we ...