1.Peel off the protective film first,first,first. Adhesive Wall Mirror: Each mirror sheet with protective films,you need to peel the film before using; Creative uses: works well for crafts and projects, you can display your creativity in your special way.2.Wide range of usage: these self adhesive mirrors work well with cars, motorcycles, bathroom mirrors, dresser mirrors and other household furniture, walls, toys or crafts, easy to stick and peel them off.3.Mirror sheet measurement: this set of mirrors size is 12 x 12 in/30 x 30 cm(L x W) and 0.2 mm in thickness, common and general for daily using.4.Quality and durable: this kind of non glass mirror is made of PET material, with smooth surface and good texture, self-adhesive back is convenient for you to use.5.It comes with 4 pack and great for laser engraving. Peel off the protective film first