What you can get: the package contains 20 pieces electrostatic stickers with 5 different shapes of birds, each shape has 4 pieces, enough quantity can meet your different needs, attractive design can offer a vivid feeling for your home window decor Easy to operate: first, clean the window with a duster; Second, spray a mist of water on the glass; Third, peel the anti-collision window cling from the vinyl backing and place it on the window in any design you like; Finally, remove the bubbles Double-sided printed design: these anti-collision window decals are printed on both sides, which are visible from outside and inside, reversible as nice decorations; Simply place these window clings onto the window's inside surface for finishing the work, do not need adhesive, give you good using experience Wide range of usages: these anti-collision window clings are good to prevent birds and people strikes from hitting windows, practical tools in daily life; Each decal is approx 15 x 15 cm/ 5.91 x 5.91 inch, proper size for using on glass panels, patio sliding glass doors or bay windows Safe to use: these window decals are made of self-adhesive vinyl, reliable material, not easy to fade, you can remove these window decals anytime and reuse them year after year, will not leave any residue on the glass as they are static