Glass drinking juice glass double wall insulated glass champagne flute Glass Wedding beer / cocktail / lemonade / Iced Tea - 6-Piece set

DISHWASHER & MICROWAVE SAFEMade of premium quality borosilicate glass, allowing you to drink cold beverages, heat it up in the microwave, or quickly and conveniently clean them (hands free) in the dishwasher -- No pin-hole design makes it truly dishwasher safe. SAFE AND SECUREThe bottom of the double wall glass coffee mugs has a small round hole that allows the glass to breathe in progress, but the water would not enter into, effectively prevent the cups from bursting during use.