The Tylaska J20 J-Lock Shackle #TY1320 is perfect for sailors who want a hassle-free experience with their genoa sheets and halyards. With its patented double-locking plunger that locks in two directions, this shackle ensures a smooth, flog-free operation. It's a reliable choice that easily fits through most genoa blocks for quick sheet changes. Benefits Patented double-locking plunger for secure locking in two directions Low-profile design for seamless integration with genoa blocks Ideal for genoa sheets, outhauls, and halyards Designed with a sleek, low-profile build, the Tylaska J-Lock Shackle is engineered to fit effortlessly through most genoa blocks. It can be easily spliced onto genoa sheets, outhauls, and halyards, making it a versatile addition to your sailing gear. The durable construction ensures longevity and reliable performance in various sailing conditions. Our Part # TYL-TY1320 | Mfr. Part # TY1320