Come and see our amazing products. This stainless steel double wall vacuum bottle has a screw top with silicone seal. Double wall copper lined vacuum sealed insulation keeps your beverage hot for 12 hours or cold for 24 hours. Meets FDA requirements. BPA free. Hand wash recommended. Do not microwave. No seams on the interior. Tumbler can be laser engraved or screen printed. Pls confirm with us about the packing info, stock color and exact production time before placing your order