Impressive 400ml double wall cup which will keep coffee hot for longer. It has a stainless steel outer wall and a polypropylene inner wall. Octane has a secure screw on lid with a splashproof sliding closure and a soft non-marking base. It laser engraves to a natural etch and is BPA-free. This product is not dishwasher safe and handwashing is recommended.lblue|Pad Print 30mm x 45mm (square).|Laser Engraving 55mm x 50mm x 50mm.Dia 75mm x H 155mm.