Kryptonite Kryptolok 10-S DFS Bicycle Security Disc Lock Stapler style disc lock with 10mm pin diameter for increased theft protection Hardened drop forged steel resists cutting, sawing, freezing and chisel attacks Dual reinforced, high security, disc-style cylinder 2 stainless steel "I" keys Includes pouch with belt clip for easier transport Key Safe Program Product dimensions: 0.39 (10mm) locking pin diameter. Product weight: 2.00 lbs. (0.91 kgs) 3.46 (88mm) maximum distance for disc rotor insertion 0.31 (8mm) maximum disc rotor thickness to insert lock