... steel, single wall, double wall available, different kind of lids available.4) CertificatesBPA free, FDA certificate, ASTM ... extrusion, seamless body, polished surface,various colors for body.Customer logo printing(silk screen/heat transfer, ... &LidsSports caps and lids,sippy lid, all kinds of lids, above 15 kinds available.7) Lead time ... new 350mL stainless steel sports Bottle for Children with sipper cap