Kryptonite New York 1213 Cinch Ring Chain 4.25’ with Evolution Series 4 Disc Lock 999546SPECIFICATIONS & FEATURES 12mm six sided, chain links made of 3t HARDENED MANGANESE STEEL for maximum strength CINCH LOOP for effective lock ups using less chain Offers nearly the same in use length as a traditional 5. 5 chain, which means less bulk to carry Durable, protective nylon cover with hook n loop fasteners to hold in place Includes Evolution series 4 Disc Lock with 14mm MAX PERFORMANCE STEEL SHACKLE HIGHER SECURITY DISC STYLE CYLINDER with