Through environmental protection testing, green and healthy household products. The installation is simple and quick, and can be installed by the elderly and children. No cement or sand is needed. No need to ask the decoration staff to pay, you can spell out a variety of patterns by yourself. Easy to clean and disassemble. The product is light and heavy. Can withstand car rolling without cracking. Size 30CMX30CM. It is a good home product worth owning. Contact 13452288246 Weitong QQ714902936.EMIL714902936@qq.com