500 ml Tall Color Changing Glass Cups includes the following features : 

• Made of quality soda lime glass with high temperature baking process
• The pattern on the cup will change color when you pour a cold drink in the cup. When the temperature of the cup goes up, the color goes back to the original color
• Suitable for all kinds of drinks
• Gift idea for your friends, family and co-workers
• Customized patterns are welcome at option

Material :

• Soda lime glass

Size closed :

• Capacity of 500 ml
• Top diameter of 5.6 cm x Base diameter of 7 cm x Height of 14.4 cm