The high-strength composite T2ô is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 Loopís on/off loop system slides through the block head and over the anchor post for a secure connection. A SK75 DyneemaÆ loop is included. Replacement loops available.