Single line reef, upgrade kit for 2 SLR reef. Complete kit. For Seldén B134 & B135 boom sections Stemball Cup the trip line must exit

the trip line must exit through an exit box

The PBB16 Single Brass Block is a 16mm plain bearing block designed for flag lines

BBB60 and R60 blocks

5 mm thick spacer shim are included in the kit

allowing it to replace blocks in some applications

Single line reef, upgrade kit for 2 SLR reef. Complete kit. For Seldén B134 & B135 boom sections Stemball Cup the trip line must exitUpgrade from slab reef to the convenience of Single Line Reefing. This kit is for B134 and B135 booms. Instant reefing with Single Line Reef Single Line Reef is made practical and reliable by Seldn. All you do is ease off the halyard to premarked reefing points and then haul in on the reefing line. The luff and the leech are reefed at the same time. A system of guided blocks inside the boom ensures that the lines do not tangle. The system has a 2: 1