Buffalo One-touch Vacuum Cup 15oz (450cc)/ Blue Super light (240g/ 0.5lb) and easy to carry around everywhere! Double-layered stainless steel uni-body construction with vacuum chamber keeps cold beverages cold and hot beverages hot Leak-proof lid design with safe and durable seal Slip proof base to prevent spills and knock overs Dimensions: 8-1/2"x 2-1/2" x 2-1/2"