SKYDREAM Borosilicate Insulation Double Wall Clear Glass Mug Coffee Cup Tea / Double Layer Transparent Glass Heat Resistant Tea Cup Insulated

Dear Customer,Coffee Glass will be packed in a box + double bubble wrapping to ensure the products received in good condition.However, the uncertainty for incident are unavoidable as it is not in our controllable circumstances And there's uncertainty for courier workers to throw the parcel and not handle them with care. Please contact us through our customer service, for a full refund or replacement. Thank you for your cooperation! Have a good day!IMPORTANT Note: Glass not for use with metal utensils.Our Item is made of Borosilicate glass ,NOT a normal glass!The bottom of the cup is designed to vent, which is required by the manufacturing process and is not defective