3D Acrylic mirror number The 3D number contains 3 parts, acrylic mirror surface, EVA foam and adhesive Smooth and shining acrylic mirror surface with protective cover brings shiny look for your room. High-density EVA foam is non-deformable, makes the wall clock three dimensional. Premium adhesive ensures the clock stay on the wall for years. Note: Please peel off the protective film of the acrylic numbers after assemble Enjoy the fun of DIY with your family Durable Unique Design Modern Wall Decor High Quality Package Included: 1 x DIY Wall Clock Kit (Without Battery) Installation tips: 1. Please mark the position of the numbers using the paper rule (included), then stick the numbers onto the wall 2. Do not attach the clock hands onto the base before you finish other steps. 3. Keep clock hands parallel and screw the cap tightly without gap Suggestion: If you want to remove the numbers, use a hairdryer to heat up the glue behind the numbers. It will not damage your wall