Smart Flooring Protection - These computer desk chair mats create a smooth rolling surface for low-pile wool carpets or hardwood floors to reduce scratches or scuffs. Clear, See-Through Design - The large, square shape and transparent format lets the color or floor style shine through without detracting from home or office décor. Skid-Resistant Studded Bottom - Each office desk chair mat features a rubber "stud" bottom that helps keep it from slipping, sliding, or moving around when rolling. Heavy-Duty Resilience - Offering family-friend durability, these under desk mats are free of phthalates, toxins, cadmium, tin, or lead for safe, long-lasting reliability. Personal or Professional Use - [Brand] desk chair mats can be used in your home office or at work to create a more stable, comfortable, safe working environment.