Intended for custom use by sailors, Harken's 16mm Sheave (Part No. 415) is designed with self-contained Delrin¨ sheaves and stainless ball bearings that ride in a grooved race, providing a maximum working load of 113 kg (250 lb). The sheave has a diameter of 16 mm (5/8 in) and can accommodate a maximum line diameter of 5 mm (3/16 in). Delrin¨ is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.