INDESTRUCTIBLE PLASTIC MATERIALS – Test the limits of indestructibility with each high-quality unbreakable tritan drinking glass. With ultra-durable plastic, each drinking cup is far more robust than the ordinary plastic variant, to guarantee satisfaction. MICROWAVE & DISHWASHER SAFE – Safely wash or microwave your cups without ever worrying about hazardous particles. The BPA-free design allows each cup to be microwaved or washed in the dishwasher, without ever sacrificing material integrity. STACKABLE CONSTRUCTION – Save space while staying orderly, with each cup’s fitted design for stacking. Simply stack the acrylic glasses on top of one another to reduce the amount of space needed for storage. KID-FRIENDLY – Guarantee safety for everyone in the family with high-grade BPA free plastic that doesn’t shatter or break like glass. No matter what the kiddos try, they won’t be able to break each durable Lowball cup. ELEGANT HIGHBALL DESIGN – Enjoy any variety of liquids in an elegant glass