Specifications:Material: Acrylic.DIY custom size :40-60cm / 15.7"-23.6".Inner Diameter:10cm / 4"Hour hand: 15.5cm / 6" Minute hand: 19.5cm / 7.6"Battery: AA 1.5v (Batteries not included)Specific:Fashionalbel DIY Wall ClockHow to Install?STEP1:Fasten the clock on the wallSTEP2: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 nowWarm 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.