500ml double wall, vacuum insulated stainless steel drink bottle with a smart matte finish. It will keep drinks cold for 24 hours or hot for up to 12 hours. Orion has a secure screw on stainless steel lid and is presented in a black gift box or optional gift tube. It laser engraves to a shiny steel finish and is BPA-free. This product is not dishwasher safe and handwashing is recommended.