Check the listing for details. Barton Marine Fixed Eye Block Single Size 3 #N03110. Condition: New. Listed at 18.10 USD. Download Literature Barton Marine N03110 Sailing AccessoriesSize 3 45mm Plain Bearing Pulley Block Single With Fixed EyeThe size 3 Barton plain bearing blocks have a 45mm (1 3/4" sheave size 3 block range that incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fiberglass filled nylon and Acetal sheaves to maximize their strength whilst keeping weight to a minimum. Suitable for use as mainsheet, vangs, lead blocks, or wherever a powerful and compact purchase system is required on dinghies, dayboats, and lightweight cruisers. Suitable for up to 10mm (3/8") rope. Normalized SKU: N03110 UPC Code: 5035088080823Barton Marine N03110 Literature Download%20VEHICLE%20PARTS%20&%20ACCESSORIES%20>%20WATERCRAFT%20PARTS%20&%20ACCESSORIES%20>%20SAILBOAT%20PARTS"> Quick Reference Guide Owners Manual