Elegant 500ml double wall, vacuum insulated stainless steel flask with a decorative patterned outer wall. It will keep drinks cold for 24 hours or hot for up to 12 hours. Mosa has convenient push button operation and its own plastic cup. The flask is BPA-free, laser engraves to a natural etch and is beautifully presented in an XD gift box. This product is not dishwasher safe and handwashing is recommended.