Features:*【Mute nylon roller】Our curler wheel adopts mute nylon wheels, no scratching on the sliding, soft and stable. You can open and shut the door very easily and silently.*【High-quality material】Sliding door roller wheel fabricated from high strength nylon, high-speed bearing and tremendous alloy base plate. The is lined with multiple layers of baking paint, thick and not clean to rust, wear-resistant and strong for long-term use.*【Adjustable height】Retractable upper wheel is convenient for door leaf installation, adjustable peak compatible for a variety of interior doorways and windows. Cylindrical catheter, horizontal rotation structure, tender sliding with out .*【You will get】1 set heavy duty sliding door rollers, measuring 85 x forty five mm within the dimension of sliding door fittings. Classic design with black and white color will perfectly integrate together with your doors and windows. It is recommended to put in 2-4 pulleys in line with cupboard door.*【Multiple applications】Versatile sliding wheels for cabinets, windows, closets, wardrobes, showcases, and so on.Specifications:*Product Name: Sliding Door RollersMaterial: Nylon and AlloyWheel Diameter: 30 mm*Size: 85 x 45 mmHole Diameter: 6 mmColor: Black,silverPackage Content:1pc x Sliding Door RollersNote:1. The genuine shade of the item could also be barely assorted from the pictures proven on online page attributable to many points corresponding to brightness of your computer screen and lightweight brightness.2. Please allow slight manual measurement deviation for the data.