Transparent chairmats for Hard Floors (parquets, floor tiles, etc) made with PET (Polyethylene Perephthalate) of the utmost quality. Resistant to the wear and tear of chair castors over an extended period of time. Anti slide bottom with spikes ensures that the parquet stays in one place. The PET material is environment-friendly, 100 percent recyclable, impact-resistant, fireproof and non toxic. They fulfil standards DIN 68.131 for office furniture with castors and DIN 4102/B1 for fire prevention respectively. Available in 2 formats (square with feet extension and semi circle) and 2 different sizes.