1. Lite weight,Slim keep long time both cool or hot. 2. Coat with Food Manufacturing substance. 3. Using High Technology to keep a temperature in body of vacuum Bottle. 4. Smart design. Color: Stainless Steel Dimension(W)x(H)x(L):23.0 x 30.4 x 21.1 mm. Capacity:0.35 - 0.50 Litre