Trimax THEX5060 Combo Set - THEX Super Chain 5' x 11mm + MAX60 Disc U-Lock Large hexagon shaped 11 mm links Durable NYLOMEX sleeve protects against scratches; Durable PVC sleeve covers chrome steel shackle to prevent marring and scratching Hardened solid steel lock prevents prying, sawing and hammer impacts Withstands over 6 tons of pull force and 11 tons of cutting force Type B key, which is an ultra secure wise wafer key. Lock core design provides the highest degree of protection against picking. Includes 3 keys. One key is equipped with a mini flashlight.