Brand new and high quality Type:drinking dice Color:Green(white Luminous in dark) Material:Acrylic Size:14mm/16mm Color:White Quantity:2pc/4pc/5pc/8pc/10pc Notice: 1.1cm=10mm=0.39inch. 2.Please allow 0.5-1cm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures. Precautions for the use of luminous dice: 　 Put the dice in the sun to get a good luminous effect! The ideal luminous effect can also be achieved under the strong light.　 Special attention: the luminous effect can be generated repeatedly, that is to say, the luminous function of this dice will never disappear. Generally, the dice can be bright for 2-3 hours under the condition of fully absorbing light energy. The quality of the luminous effect depends on the brightness of the environment. The darker the environment, the better the luminous effect!