BlinkOne Espresso Cups Coffee Shot Glasses (2 Pcs) DOUBLE WALLED SHOT GLASSES: Made of high quality borosilicate dual layers heat resistant glass material. Coffee and Tea friendly. PERFECT SIZE: Handy and practical for coffee drinker; Product dimension: 1.6 Inches (L) x 3.14 Inches (H) x 2.04 Inches (W). Weights: 2.7 Oz each. COMPATIBLE: Can be used with Delonghi espresso maker, Krups, Keurig and every popular coffee machine maker. DURABLE AND SAFE: BO338EG is dishwasher safe, cold and hot beverage friendly. An ideal gift set for your loved ones and for Coffee and Tea lovers. LIFETIME WARRANTY: Our contemporary product is covered by our lifetime warranty against defects in materials and workmanship with proof of purchase DIRECTLY from BlinkOne on Amazon only.