Food Grade Silicone Cup Lid, Universal Anti-Spill Dustproof Mug Cover. Free Design and Samples: Offer free design services and samples, with sample fee returned on bulk orders. ISO Certified Quality: ISO9001:2008, RoHS, and FDA certified with strict quality control systems. Extensive Material Options: Available in NBR, CR, SBR, EPDM, IIR, HNBR, ACM, NR, EP, SIL, FKM, and more. Customized Color and Hardness: Colors and hardness (30-90 Shore A) are fully customizable according to requirements. 10+ Years OEM/ODM Experience: Over a decade of experience in molded rubber parts and custom manufacturing. NDA Protection: Non-disclosure agreements signed to ensure drawing and design safety. Weekly Production Updates: Receive weekly reports with digital pictures and videos of production progress. One-Stop Solution: Comprehensive services including CNC, molding, stamping, and drop shipping.