Double wall vacuum insulated stainless steel tumbler, keeping hot for 8 hours and keeping cold for 12 hours. Good sealing and spill-resistant. BPA free and dishwasher safe allows the tumbler reused and befenits the environment. Your custom logo is always welcome to imprint on the lid, to make your company name visible. 3 1/2" Diameter x 2 7/8" Diameter x 7" H