Product Name: Plastic Cap with Silicon / Bottle Cap / Bottle Cover (SS4309) Model NO.: SS4309 Plastic type: PS / as / ABS Material: Plastic + Silicon Type: Screw Cap Bottle Cap, Plastic Cap, Bottle Cover: Silicon Cap, Silicon Cover, Plastic Lid Trademark: Sea Song Transport Package: Plastic Bag + Outer Carton Specification: 51x45x29 H mm Origin: China HS Code: 3923 Product Description Plastic Cap with Inner Silicon / Bottle Cap SS4309Size: 51x45x29 H mm, Weight: ~22g, Dia. of bottle mouth: 35mm, Material: Outer Lid - Clear PS / AS / ABS; Inner Lid - Silicon with various of colors. Double Screw Finish. 100% Airtight and Leakproof. BPA Free. The color, style, size or other specifications can be designed according to your demand.