Harken 2146 29mm T2™ Soft-Attach Carbo - The first block with no fasteners, rivets or other metal parts for the lightest soft attach block ever. An all composite design, the soft attachments provide a fair lead to reduce friction. The T2 Loop makes it so knots and splices are not needed, as well as no tools needed to install. It has a Spectra Loop Attachment point. The T2 includes a length of line that can be tied, spliced or lashed to almost anything. An SK 75 Dyneema loop is included with each block. With a simple construction there are no lubricants needed, making these Harken blocks very easy to maintain. Available in 29, 40 and 57mm sizes. Loops are also available separately.