Sip in Style! ☕️ Elegantly packaged, ideal for gifting or personal indulgence. Double wall design prevents burns while keeping your drink hot. Crafted from 100% lead-free, BPA-free borosilicate glass. 30-day free replacement policy for peace of mind. Safe for microwave, dishwasher, and freezer use. Borosilicate glass Double wall insulation Microwave & dishwasher safe The CNGLASS Double Walled Glass Coffee Mugs are a set of two 10oz insulated espresso cups designed to keep your beverages hot while ensuring your hands stay cool. Made from durable, hand-blown borosilicate glass, these mugs are 100% lead-free and BPA-free, making them a safe choice for health-conscious consumers. They are microwave and dishwasher safe, and come elegantly packaged, making them a perfect gift option. Plus, with a 30-day free replacement guarantee, you can buy with confidence.