Come and see our amazing products. The can glasses are made of high-quality durable clear glass, Lead-free and BPA-free. It can be used safely for a long time. This thick clear glass can withstand the sudden changes in the temperature difference between -68 to 212 degree F, making them dishwasher safe. If you want to decorate this glass, you can do DIY easily without breakage. Pls confirm further with us if any query about packing info, inventory status and time schedule.