Rocket Disc Ultra tough motorcycle and scooter security disc lock for moderate to high theft danger areas Hardened drop forged steel resists cutting, sawing, freezing, and chisel attacks Stapler style engagement to increase theft protection 7-pin, pick-and-drill resistant, tubular locking mechanism Compact and weatherproof Two sizes available 10mm pin diameter-10cm x 6cm 5.5mm pin diameter-6cm x 5cm