What You Get: you will receive 2 pieces of black sliding ladder roller with brake, which is just enough for you to install a ladder, meeting your needs in library, loft, indoor and outdoor places Quality Material: the rolling library ladder roller is made of solid steel with a black layer on the surface, which is suitable for indoor or outdoor use in most seasons; The hardware can handle more than 210 pounds of stairs Beautiful and Simple: the loft ladder roller has a black frosted surface, making your ladder and door antique and simple, and reliable materials and nice forging technology provide a safe service life for your family Simple Installation: the rolling ladder roller is suitable for most barn doors and library ladders; Just install it with screws (not included) at the bottom of the ladder to help you move the ladder or other heavy furniture easily Convenient and Safe: our library ladder hardware has a brake, so you can go where you want to go, and climb up to get thin