Endcap, with Screws for Midrange T Car
The Harken mainsail traveler systems give a very direct control and operate excellently, even in harsh conditions. The balls are captive and therefore easily maintained and changed. They're used primarily for mainsheet travelers, but they're also frequently used for self-tacking jibs, outhauls and vangs.
The Traveler System Kits contain a set of controls, a traveler car with control blocks and fasteners. The track must be purchased separately.