[PACKAGE AND SIZE]: Set includes 10pcs butterfly shape anti-collision window clings in 10 different styles, offer a delightful colorful life like design seen inside and outside.[ELECTROSTATIC ABSORPTION]: The anti-collision clings can stick to the smooth surface by electrostatic absorption, which can be removed without any glue residue.[TRANSPARENT MATTE DESIGN]: The reflective material design in each anti collision window cling reflects ultraviolet sunlight as glowing warning sign for birds, which are visible from outside and inside.[EASY TO USE]: Step 1, clean the window with a duster. Step 2, spray a mist of water on the glass. Step 3, peel the anti-collision window cling from the vinyl backing and place it on the window in any design you like; Step 4, remove the bubbles.[WIDE APPLICATION]: Can prevent birds and people strikes, suitable for sticking on glass panels, patio doors or bay windows, can act like mirrors with the sun rays reflection, also good decoration to your windows or glass doors.