General description ELEGANT LOOK CLOCK - The acrylic mirror surface and 3D effect create a luxurious ambiance, making it a perfect art clock decoration for your home or office. DIY ASSEMBLY - Enjoy the fun of assembling the clock with family or friends. ADJUSTABLE SIZE - The frameless design allows you to easily modify the diameter of the clock to fit various wall sizes. EASY TO APPLY - The mirrors and EVA are self-adhesive, requiring no additional tools like glue or nails for installation. Technical specifications Material: mirror face, alloy watch, EVA Hour hand length: 31 cm Minute hand length: 39 cm Tact bowl size: 12*2 cm (diameter * thickness) Reference range size (diameter): 90-100 cm (default); 70 cm (minimum); 130 cm (maximum) Time accuracy: -0.8~+1.2 seconds/day Power: 1*AA battery (not included) Installation STEP 1: Fix the clock on the wall STEP 2: Use the auxiliary scale to position the clock correctly STEP 3: Attach the hour hand and minute hand STEP 4: Adjust the time