Cleartex Glaciermat designer chair mat manufactured in the USA from incredibly tough & locally produced tempered glass. Ideal for executive or home office use. Our reinforced glass is tested up to 1000 lbs making it suitable for heavy office chairs or heavier users. Provides elegant, crystal clear floor protection from chair caster damage and general wear. The smooth and perfectly flat surface provides an excellent ergonomic easy glide surface for caster based chairs. Suitable for both hard floor and all pile carpet applications. Manufacturer’s 10 Year Limited Warranty.