ABOUT THIS PRODUCT:Material: GlassLength: 8cm (3.14in)Glass diameter: 2cmPackage Contain: 1 Pc Glow KeychainHow to glow in the dark:Put the product in the sun or under the light for 20 seconds Then put the product in the dark. you will see the product glow in the darkDear Customers Please Note：Please allow 0.5-1cm error due to manual measurement. pls, make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Notice: If you are not satisfied with the product, please contact us first, we will solve it for you, Thank you!
