![[HK-1988] HARKEN 57 mm Aluminum Mastbase Block](http://www.yachtparts.com.au/cdn/shop/products/1988_6ba7d9f5-c028-4ff7-b917-da722cffa239_1024x1024.png?v=1554367687)
![[HK-1988] HARKEN 57 mm Aluminum Mastbase Block](http://www.yachtparts.com.au/cdn/shop/products/1988_6ba7d9f5-c028-4ff7-b917-da722cffa239_480x480.png?v=1554367687)
Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.
Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.