Placed mat over low carpet so desk chair would roll more easily. Unfortunately the plastic is not thick enough so the chair rollers create divots in the plastic that making moving the chair difficult. The size and shape is great for keeping the chair from rolling off its edge when moving in the chair . Just wish it was better quality.
This product works as advertised. Protects the carpet while facilitating easy movement of my office chair in my workspace. Definitely would recommend this chair mat.