1. What you can get: there are 24 electrostatic stickers with 24 different shapes of butterflies pattern, each anti-collision window clings offer a vivid design for your home window decor2. Easy to assemble: first, clean the window with a duster; Second, spray a mist of water on the glass; Then peel the anti-collision window cling from the vinyl backing and place it on the window in any design you like; If you want to rearrange it, simply peel it off and move it around3. Transparent matte design: the specially designed reflective material in each window cling reflects ultraviolet sunlight as glowing warning sign for birds; To humans they appear as frosted or etched glass4. Range of application: the anti-collision stickers prevent bird and people strikes; Paste them to glass panels, verandah doors or bay windows, can act like mirrors with the sun rays reflection; The window birds stickers also can decorate your windows or glass doors5. Note: when you attach the window clings to the glass, make sure that the distance between them is not more than 6 inches, so as to maximize the effectiveness of preventing birds strike on windows