Transparent chairmats 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 mat stays in one place. The PET material is environmentfriendly, 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.