The espresso shot glasses is crystal clear, high transmittance, made of nonporous glass that won't warp, stain, or absorb odors; And double walled, borosilicate material, high borosilicate glass is chemically stable, healthy and environmentally friendly, and does not contain harmful substances to the human body.

It is currently an ideal drinking utensil UNIQUE DOUBLE WALLED GLASSES DESIGN: Specially designed with double walled glasses, this thermal coffee mug keeps coffee or tea hot, and a heat transfer- resistant handle for hand safe touch; Hot drinks will not burn your hands and cold drinks will not form condensation.

No burn marks or wet rings will be left on your especially precious leather or wood table Sturdy & Durable: Heat resistant graduated glass jar made by double thicken glass, cup wall thick cup wall, scratch resistant and more durable to stand the daily us; And High quality high borosilicate can be heated directly on fire or frozen on refrigerator.

This tea cup milk mug can withstand -20℃/-4℉ 150℃/302℉ MICROWAVE AND DISHWASHER SAFE: Double insulated coffee mug give an extra luxury look in your kitchen or on your dining table.

It's more heat-resistant, high transparency, thinner and light weight, but more durable than normal glass.

It's preheated oven, microwave, fridge, freezer dishwasher safe INCREDIBLE VALUE: 8.1ounces/230ml, 4 inches high is suitable for popular coffee machines, and perfect for latte mug,cappuccino cups,coffee,tea,espresso mug or other hot cold beverages.