AMiGAZ 18 Bike Chain & Shackle 23 Double Wallet Chain Features: Doubled up for a cool combo Bike chain is 18, shackle chain is 23 Mix of black coated steel and chrome plated steel Shackle Chain links measure 5/8 L x 1/2 W Note: AMiGAZ hardware (sturdy snap hook and dual wallet hook end pieces) adds approx. 3 to the listed length of wallet chain