About this itemWINDOW DECALS FOR BIRD STRIKES - Bird strike window decals to alert birds, stop birds from attacking windows. It can be applied to home and office windows, glass doors.SUN CATCHERR / RAINBOW MAKER STICKER - The decals break up reflections on the glass and alert birds away to avoid window strikes. Made with translucent prismatic vinyl which captures sunlight and turns it into amazing rainbows to your room. WE USE PREMIUM VINYL ONLY ---MORE COLORFUL, WORK BETTER, THICKER and LONGER LASTING.Hummingbird-style. 5 styles, 4 pieces for each style. Total of 20 pieces. The size is about 7 inch. Instructions included.NO RESIDUE - Stick to windows with static, no adhesive, movable and reusable. --IMPORTANT reminder: The backing film MUST be PEELED OFF before sticking to windows, or the cling will fall off when the water is dry.