1. Flexible and easy to use 2. and nice qulity, to use. 3. Built to quality control standards.Not easy to damage, long service life 4. Stable performance, high reliability.a perfect replacement for your old 5. Made of high quality material, for use. hese hinge quiet sleeves install on the roller shaft and provide a cushion between the roller and the hinge, they also fill the space to avoid rattling. These sleeves work with most all hinges, they fit tight on the roller stems and work best with rollers or rollers with clean stems. Shaft nuts are provided. Best to use Lithium Grease on stems for easier installation. Also make sure all hinge screws are tight (for even less noise) Item Type: Garage Door Hinge Mute Roller Sleeve Condition: 100% Fitment:Direct Replacement Colour:As Shown Material:ABS Package Contents: 20 * Garage Door Hinge Mute Roller Sleeve 20 * Garage Door Hinge Roller Shaft Nut Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.