Product Name: Silicon Cap / Bottle Cap / Bottle Closure (SS4309) Model NO.: SS4309 Plastic type: PS / as / ABS Material: Plastic + Silicon Type: Screw Cap Plastic Cap with Inner Silicon: Plastic Cap, Bottle Cap, Bottle Cover Silicon Cap, Silicon Lid: Bottle Closure, Plastic Lid, Sealing Caps 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 SS4309 Size: 51x45x29 H mm, 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.