Unique 300ml double wall, vacuum insulated stainless steel drink bottle with a timeless cylindrical design that really attracts attention. It has a secure screw on lid and will keep drinks cold for 24 hours or hot for up to 12 hours. Stirling has a painted matt finish and laser engraves to shiny steel. It is BPA-free and is presented in a black gift box. This product is not dishwasher safe and handwashing is recommended.