This tough lock is small enough to fit in the palm of your hand and weighs less than 1-1/4 lbs. Through-hardened 1/2" Kryptonium steel shackle is almost indestructible - defies bolt cutters, hammers and chisels Withstands over 10,000 lbs. of pull force; 20,000 lbs. of cut force Bent foot design provides easy-to-use pivoting shackle for added strength and flexibility Pick/drill-resistant 7-pin tubular locking mechanism Rotating dust cover protects cylinder Vinyl coating seals out the weather and prevents marring Designed to fit around front disc brake...or can be locked around rear disc brake or other parts of wheel or disc mount Includes 3 keys (one is lighted)