12 packs of nylon garage door rollers, replace your old, noisy or damaged segmented track style garage door parts with our quiet and garage door nylon rollers<br> The garage door roller is made of white nylon, which is softer and quieter than plastic or metal rollers; 11 reduce the rotational friction between the rollers and the shaft, making the opening and closing of the garage door quieter and smoother<br> The size of the garage door roller matches that of most residential garage doors, making it easy to install and effectively extending the service life of the garage door roller over 100000 times<br> Package includes 12 white garage door rollers, 4-inch nylon garage door (recommended lubrication, not included)<br> Colour:White<br> Material:nylon<br> Size:45mm x 105mm<br> Package Contents:<br> 12 x garage door rollers<br> Only the above package content, other products are not included.<br> 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!