Purposefull Thermo Double Walled Glass Coffee, Espresso, Latte & Tea Cups - Set of 4 x 250ml Cups &ndash; Dishwasher Safe HIGHEST QUALITY BOROSILICATE GLASS  Its highly durable, non-toxic, BPA-free, heat-resistant, dishwasher and microwave safe. INSULATING DOUBLE WALL  Our glasses are designed with two walls of borosilicate glass, creating a highly effective layer of insulation. The double wall keeps drinks hot and the outer surface cool, so it's safe to touch. Hot drinks are kept hot for a longer period of time while the glass itself remains cool to the touch. MODERN DESIGN OF THE PERFECT LOOKING DRINK - The 2-layer design creates a dramatic optical illusion of coffee/tea suspended within the cup. Its a beautiful smooth finish, crystal clear addition to any cafe, restaurant and definitely your home! NO RINGS ON THE TABLE - Have tea, iced tea, carbonated drinks, coffee with milk, desserts and ice cream!!!! No need to worry about those irritating rings forming on the table, the double-wall prevents condensation from forming on the outside of the glass. DELIGHTFULL GIFT BOX & 100% SATISFACTION GUARANTEED  Your glasses will arrive packaged in a delightful gift box: a perfect house warming gift. The stability and quality of this beautiful glass set will not let you down.