Oculus clear office chair mats are made of crystal-clear polycarbonate with a glass-like appearance that blends seamlessly into any home office. Durable and rigid polycarbonate chair mats have a smooth surface that supports chair wheels and resists indentations so chairs rolls smoothly. UV and shatter-resistant polycarbonate protects flooring from wear and damage caused by rolling chair wheels over time. To assure your chair mat reaches you in excellent condition, Oculus mats are shipped flat in a corrugate sleeve. Your desk chair mat will never be rolled or folded to assure it is ready when it arrives - no curled corners or misshapen mats. To assure your floor protector arrives free from scratches or scuffs, it will have a film on both flat surfaces. Remove this protective film prior to use. Since the flat mat is untextured on both sides, you can place it under the desk with either side facing up. Assure the surface under the mat is clean and dry before positioning the mat. Clean your mat with a mild household cleaner and soft cloth. Oculus polycarbonate chair mats have a 1-year limited manufacturer’s warranty against failure due to defects, limited to replacement of the defective mat only.