What you get: The pack contains 20 static stickers with 5 different bird shapes, 4 of each shape, enough to meet your different needs, with attractive designs to bring a vivid touch to your window decoration. Easy to use: first, clean the windows with a cloth; second, spray the glass with water; Third, peel the stickers off the vinyl adhesive and place them on the windows in the pattern of your choice; finally, remove the air bubbles. Double-Sided Printing: These window stickers are printed on both sides, visible from the outside as well as the inside, for a beautiful and reversible decoration; Just place these stickers on the inside surface of the window to complete, no adhesive is needed, giving you a great using experience. Versatility: These impact resistant window stickers provide excellent protection against birds and people striking the window, a practical tool for everyday life. Safe to use: These window stickers are made of self-adhesive vinyl, a reliable material that does not fade easily. You can remove them at any time and reuse them year after year without leaving any residue on the glass since they are stationary.