Shim, 10 x 370 x 58 mm, for Mast Jack System D80/400 Length 69 mm ensuring corrosion resistance and ease

ensuring corrosion resistance and ease of rig tuning as per Seldén's guidelines

This bow ring assembly makes for a flexible installation as the ring can be positioned and fixed in a perfect direction for the outboard end of the bowsprit to end up on the prolonged centerline of the boat

Made from glass fibre reinforced polymer

L-MIN: 195 mm

As the material is bronze

Shim, 10 x 370 x 58 mm, for Mast Jack System D80/400 Length 69 mm ensuring corrosion resistance and ease10 mm thick aluminium mast jack shim. Pump up the mast, place shims below T base and mast heel and release pressure. Read all about Seldns mast jack systems on our website. https: support. seldenmast. com files 1723731359 597 107 E. pdf