New Dimex Office Chair Mats offer the best overall quality office chair mat available on the market today. Dimex Chair Mats are designed to provide industry leading clarity, superior wear resistance and a surface that allows chairs to move freely. Replacing or repairing carpeted floors can be expensive. Protect your investment with a durable Dimex Chair Mat that is engineered to protect your low or medium pile carpet from wear due to the wheels of your office chair rolling back and forth over time. Perfect for low and medium pile carpet thicknesses of 3/8 in. or less. TIP: To determine the thickness of your carpet pile, place a penny on its edge down in the carpet pile (like measuring a tire tread). If the bottom of Lincolns nose is at or above the carpet pile, your carpet is 3/8 in. or less. Color: Clear. Pattern: Solid Color.