<p>-2" nylon rollers with shaft length:7", suitable for 2" track</p> <p> </p> <p>-Bright galvanized steel stem.</p> <p> </p> <p>-Endurable and wear resisting.</p> <p> </p> <p>-10 PACK - sealed stainless steel ballbearing garage roller</p> <p> </p> <p>-NYLON - roller diameter for 2" track,ultra quiet</p> <p> </p> <p>-SS BALL - 13 ball bearing for durability</p> <p> </p> <p>-SHAFT - 7" inch stem</p> <p> </p> <p>-13 Ball Bearing Rating : 130lbs per rollerand 100,000 cycles</p> <p> </p> <p>-Applications:</p> <p> </p> <p>-Connecting the sectional door panels, andlink the panels up or down.</p> <p> </p> <p>-Assorted hinge bracket hole combinations</p> <p> </p> <p>-The styles range from #1 hinge to #6 hinge</p>