... work.3)MaterialImported s/s 304 stainless steel, single wall, double wall available, different kind of lids available.4) CertificatesBPA free ... seamless body, polished surface,various colors for body.Customer logo printing(silk screen/heat transfer,engraving,embossed) available.6) Caps&LidsSports ... kinds of lids, above 15 kinds available.7) OEM printing design are welcomed.8)Lead time sample :3-7 days ...