Magnum 2" wide laminated steel body. Tough-cut octagonal boron-carbide shackle. Dual ball bearing locking for maximum pry resistance. Dual-armor protection, laminated steel core for strength, stainless steel and zinc outer components for weather-resistance. 4-pin cylinder for increased pick resistance. Reinforced body bumper for scratch-resistance. Shackle dimensions: 2" L x 61/64" W x 3/8" D diameter boron shackle. This padlock is only keyed alike within full case of 6. Each case of 6 will have different keying.