About this item [RAINBOW WINDOW STICKERS]: A crash window decal that collects sun rays and turns them into bright rainbows throughout the room. Note that it is transparent without sunlight. [SIZES]: 1 set of 12 window decals, including 4 pieces of 3.93" (10cm), 4 pieces of 3.54" (9cm), 4 pieces of 3.14" (8cm), made of vinyl material, not easy to tear and fold. [NO GLUE DECALS]: Anti-Collision static window decals paste by electrostatic way, without any glue or adhesive. just a fine spray of water to apply, leaving no traces, easy to remove and can be reused many times. [EASY TO USE]: Need to spray water to stick tightly, window clings can be applied to glass doors,patio door,sliding glass door, make sure the glass surface is smooth and clean. ----IMPORTANT reminder: The backing film MUST be PEELED OFF before sticking to windows, or the cling will fall off when the water is dry. [WIDE APPLICATION]: Rainbow window decals for sliding doors can effectively prevent birds or dog from hitting, and can also be used as a home decoration to refract colorful sunlight. Suitable for kitchen, dining room, living room, living room, etc.