This is a set of Unicorn Wall Decals. Its magic lies in the fact that it will glow in the dark at night (provided it has been exposed to light for at least 20 minutes). It consists Includes 3 sheets stickers, every sheet size: 20cm x 18cm (7.9" x 7.1"). It can be used for turning on/off lights, sockets, or wherever you want it to appear, adding a little light and fun to the night. Kind reminder: It will not emit light without absorbing light. The duration of light emission depends on the time it takes to absorb the light. Typically, in an environment with lights on, it can absorb light for 20 minutes and emit light for 60-120 minutes.