Allen A178BB 29mm single ball bearing block, an upgraded version of the classic Laser mainsheet block. Laser class legal.
Made from nylon with a ball bearing sheave for reduced friction. Originally designed for the Laser mainsheet system, it has become the block of choice for many other dinghy mainsheets.
Manufacturer part number: A178BB
NOTE: This product is a special order direct from the manufacturer and could have a lead-time in excess of 4 weeks. Contact Us for a more accurate time estimate.