A.B Crew 13pcs Stair Trads Rectangle Non-slip Carpet Stair Mats Rugs Pads Treads (15.75"x7.87", Flower) Material: Velvet Size: 15.75*7.87inch(40cm*20cm). Thickness: 0.31inch(0.8cm) Please don't wash it, brush with a brush, durable to use. Humanization design, the back of carpet featured with non-slip dot. Application of space: Living room, staircase, hall, bedroom.