Package Include: Total comes with 2 sets of cabinet sliding door parts wheels, contains 2 bottom convex wheels and 2 top wheels, suitable for door use, it's a great choice for sliding doors. Product Size: The dimension of the bottom wheel is about 92 x 83 x 9mm, the diameter of the pulley is 39mm, and the top wheel is 92mm x 83mm x 9mm. 'about 64 x 50 x 9 mm, the width of the double wheel is 40 mm. Suitable for most furniture. Superior Material: The wheels of the sliding wardrobe door are made of high-strength iron alloy, environmentally friendly, strong and durable, corrosion resistant, do not will not rust or fade and can be used for a very long time. Adjustable Height: This sliding door pulley with spring design can adjust the height, which can facilitate the installation of your sliding door and make it operate safer and smoother. Wide Application: Suitable for all kinds of doors that require sliding doors, drawers, windows, closets, cabinets, cabinets, cupboards, showcases and shoe cabinets, etc. It is an ideal spare part for home furniture.