The Himalayan Vacuum Tumbler is a large 550ml double wall, vacuum insulated stainless steel tumbler which will keep drinks hot for hours. It has a secure push on lid with a splash proof sliding closure. The coloured tumblers laser engrave to a shiny steel finish and the silver tumbler engraves to a natural etch. The tumbler is BPA-free and is presented in a black gift box. This product is not dishwasher safe and handwashing is recommended.