Item arrived packaged well and undamaged.  I ordered open  box which Ive never done before. I had stair treads on the stairs to the basement that I had ordered elsewhere.  I couldnt clean or vacuum them. I dont know what they were made from. Anyway, I just layed these on top and they stuck! I love the fact you can throw them in the washing machine.  If I didnt have the previous treads down, I dont know how well these would stick. They have normal rubber carpet backing. Like maybe for a bathroom rug. If I wasnt using the old stair treads to hold it down, I would probably just glue them and vacuum to clean. Anyway Im super happy with my purchase and so glad I tried the open box option. Saved some money and got a great product.....oh stair treads do have a crease in middle do to folding in shipping. Not a big deal. Im sure just throwing in the wash will fix.