The preforms are made of PET materials which has past the international health organization FDA authorization of document.The preforms are produced by automatic hot runner mould,hence,they enjoy high transparency and tailless.Features:1) 100% new material2) High transparency3) High toughness4) Different neck sizes (28mm , 30mm, 38mm, 46mm, 55mm) and weight (available from10g to 800g)5) We can produce preforms according to clients' requirements after opening new moulds or modifying our existing moulds6) Any color is workable (blue, red, clear, milky, and yellow etc.)Packing:Polybag for each, then put into paper carton producing area:China supplying capacity:750,000 - 800,000pcs/month