ITEM NAME:Strong Transparent Borosilicate Glass Coffee Cup Double Wall Glass for Milk Description: Keeps Hot Or Cold Drinks Longer double - layer glass Transparent Coffee CUP Insulated, clear glass coffee mug is Heat Resistant(-20℃-150℃) & Explosion-proof The espresso cups are made of Borosilicate Glass that is a kind of healthy drinking glassware, Lead free, Non-toxic, Odorless Specification: Material: Borosilicate Glass Size(DiameterxHeight):8.5x7m Package Includes: 1 Pcs Glass Coffee Mugs SKU: ALU0019099472009920.Material: Borosilicate Glass. Insulated, clear glass coffee mug is Heat Resistant(-20℃-150℃) & Explosion-proof. Transparent Coffee CUP. 1 Pcs Glass Coffee Mugs. double - layer glass.