Harkens beskrivning (på engelska) When you race HARD, and you rip through as many hoists and douses as we do sailing W-L legs all the time, you should expect to start wearing through the sideplates of your halyard exit block right? Wrong! Thanks to Harken Protexitblocks, wear from side angle loading is not inevitable. Protexits all-aluminum, wear-resistant housing carefully ushers line in and out no matter the angle. Theres more: Protexit blocks offer higher working loads than any small boat exit blocks weve ever made. Protexit aluminum sheaves rotate on sleeve bearings with Delrin® sideload balls so they dont deform in extreme conditions, while reducing wear on the halyard, too. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.