Quantity and Specification: Includes 2 cabinet door pulleys, product dimension size is 80mm x 85mm, pulley diameter is 43mm. Material: Made of Made of high hardness ferroalloy, it combines with your home or office decoration as it is modern and is an ideal replacement for your traditional design rollers. You open the cabinet door more easily and conveniently with these swivel roller accessories. Adjustable height: Adjusting the height of the roller will ensure that your sliding door is safer and smoother and make it easier to install. Widely used : ideal for your door, drawer, windows, cabinet, etc.