Tuscany City Bows - // - BCY B55 Polyester Bowstring Material - 3Rivers Archery Dacron Bow String Up for bid is a brand new 1/4lb spool of BCY B55 Dacron string material in the black color. This material works well for recurves, crossbows and older... Available in solid colors. Bow String Features:100 Percent polyester similar to Dacron but with better durability and less stretch. Dacron Material | Individually Made | 60X Custom Strings Primarily used for recurves Longbows, but also used on older compound crossbows and traditional bows without reinforced limb tips. Marine Tech Tools Bleed Tube. Fits Seastar Hydraulic Cylinders. INCLUSIONS & APPLICATION - The Marine Tech bleed tube is used for all outboard, sterndrive, and inboard Seastar hydraulic helms. It makes the bleeding and filling process easier and simpler