The Stealth Vacuum Cup is a compact 400ml double wall, vacuum insulated stainless steel cup which will keep drinks hot or cold for hours. It is also ideal for taking soup and food to work or school. It features a secure screw on lid with a push button activated flip closure which is spring-loaded for smooth, effortless operation. It is BPA-free, laser engraves to a natural etch and is presented in a black gift box. This product is not dishwasher safe and handwashing is recommended.