Warm Tips: This product is suitable for smooth walls,gray walls or wallpaper wall will cause the adhesive properties of the surface behind stickers decrease. Part of the wallpaper or easy to swap gray walls, please bring your own strong ticky glue for auxiliary installations. How to Install? STEP1:Remove all dirt and dust from the application surface and make sure the surface is dry and clean. STEP2:Cover the clock with the auxiliary scale,as to the scale,stick the figure at the right site. STEP3:Take down the clock,fixing the hour hand and minute hand one bye one.Tips:press the hands into the clock axes in order aim at 12 o'clock. STEP4:Adjust the time with the buttom and install the battery. STEP5:Hanging the clock return to the nail. STEP6:Well done!You can enjoy your art-work now. Pleset note: there is a protective film on the surface of the wall clock,so the scratches just on the protective film,clock is in good condition. Please tear off after installation.