This Mainstays chair mat features a studded bottom that locks securely on carpet, preventing slips and protecting against casters, spills, and wear. Its smooth top surface allows effortless chair movement. A raised lip guards furniture when the chair is tucked in, while a beveled edge ensures a seamless transition. Made with a Free and Clear, non-phthalate, and non-cadmium formula, it ensures a healthy, durable, and clear workspace.