About this item 【Premium Quality and Eco-Friendly Material】The chair mat size is 55x35 inches. No folding, non-curling, non-fading, odourless, pet friendly, non-toxic. This chair mat is designed for HARD FLOOR only, not for carpet. NOTE: Please tear off the PE film on the back before use. 【Anti slip stability】The back of chair mat is mde of upgraded adsorption material, which is super anti slip. So when using, be sure to tear off the film on the back and stick it firmly on the hard floor to prevent it from curling. This adhesive will not leave any traces on the floor. Note: This seat cushion can only be used on the hard floor, not on the carpet. 【Effectively HARD FLOOR Protector】The floor mat prevents wear and tear on your wheels or floor, such as hardwood, tile, laminate, linoleum floors (NOT suitable for any carpets or half rug), and prolong their service life. It also help reducing the noise of rolling chair, even playing games or working at night will not affect the others. PLEASE NOTE: This is a carpeted chair mat, not plastic or rubber. And there is an adhesive layer on the back, but it will not cause any damage to your wooden floor. It doesn't have any residue. 【Delicately designed color】It is woven from a fixed proportion of gray polyester and white polyester to get rid of the dull pure gray, making your office space less monotonous and more resistant to dirt. 【Easy to Use & Clean】Please ensure the chair mat and floor are completely dry and clean, tear off the film on the back, and put it on the floor, press lightly so it can gently stick to the floor. If it is used again, the adsorption effect will not be weakened. If the surface of the chair mat is dirty, please try to use a vacuum cleaner instead of a washing machine.