For catamarans, this tie-on block eliminates the need for shackles, posts, swivels, etc. It is ultra-lightweight and sized like a bullet-block.

Specifications:

• 1-9/16" sheave diameter
• 485 lb. SWL
• 1200 lb. breaking strength
• 3/8" maximum line diameter

Harken Part # 2149 

The high-strength composite T2™ 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 can be tied, spliced, or lashed to almost anything. A length of Spectra® line is included.