Country Of Origin : CHINAModel Number : DG407Model Name : TUMBLERColor : CLEARSize : 100 MLLength : 17.5 CMHeight : 9 CMWidth : 9 CMWeight : 270 GRAMNo. of Pieces: 2Material : BOROSILICATE GLASSClosure/Fastening : SEAL LOCKTemperature Retaining Capacity Is One Of The Key Aspects That Differentiate A Double Walled Glass From A Normal Glass.Double Walled Glasses Are Made From High-Quality Glass Materials That Contribute To Their Increased Durability.Double Walled Glasses Are Superior In Their Appearance And Include Several Kinds Of Designs That Suit The Requirements Of Any.Light weight and scratch resistant