● The coffee mugs glass double wall with christmas tree design suitable for christmas gift .
● The double wall design can help your drink keep cool .
● The double wall design also help your drink keep hot and don’t scald your hand .
● The glue in the bottom of the cup not defective, it’s the function need , pls do not remove the glue .
● The high borosilicate glass with high hardness but it’s crisp .
● Please put ice cubes, spoons, stirring rods and other hard objects into the inner cup carefully to avoid excessive impact, which may cause the inner cup to break .
● It is recommended to use soft cleaning utensils to avoid scratches.
● The mug is 100% hand blow and each cups will be slightly different .