- Shaft Length: approx 4″; Roller Diameter: 1.75″ for 2″ track
- Shaft diameter: 7/16″
- Nylon roller rating: 50 lb load, 10,000 cycles 8′ Door
| Material | Nylon |
|---|---|
| Assembly Required | Yes |
| Manufacturer | National |
| Item Weight | 2.4 pounds |
| Package Dimensions | 6.2 x 5.5 x 2.4 inches |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
| ASIN | B0186MLI54 |
| Date First Available | March 1, 2010 |