Shaft Packing is braided from Teflon impregnated flax roving. This gives your boat a big step up from traditional flax packing. Although the underlying flax matrix is still subject to degradation over time, the Teflon lubricants last longer because they are resistant to the frictional heat generated by the rotating shaft. Offers high performance and extended packing life Rated to 482°F; rotation speed of 2,400 ft/min Color is off-white Material: Teflon PTFE Flax Size: 1/2" Length: 2'