Modern rigging technology with the elegance of classic bronze material. These bronze dog bones can be in many applications, replacing knots or shackles. Seven Star machinists are sailors who strive for perfection both in the machine shop and on the water. These and all our products are crafted to the finest quality by craftsmen whose technical knowledge and passion are in both the machine shop and sailing. Dog Bones available in three sizes: 12mm, 10mm, & 8mm.