Master Lock was founded in 1921 by Harry Soref, introducing the first laminated padlock. The brand offers cables, locks, safes, door hardware, padlocks, lock boxes, combination locks, bike locks, and other security tools. The 1500i Speed Dial Combination Padlock opens based on directional movemen ... Read More ts rather than a combination of numbers. This lock comes in four colors and has a steel shackle and anti-shim security technology. Cables range from 6 to 15 feet long and are made of braided or woven steel. Cables have a protective vinyl coating and can be used with laminated locks, mini U-locks, and solid-steel locks. Laminated padlocks are made of laminated steel and feature a pick-resistant four-pin cylinder. The M5XTRILF laminated padlock features Dual-Armor protection, with a 2-inch laminated-steel core surrounded by stainless steel and coated with weather-resistant zinc. Master Lock bike locks include the Street Cuff, Force 3, and Mini Me U-Lock. The Street Cuff offers a $3,500 anti-theft guarantee and is constructed of hardened laminated steel. This bike lock features a leverage-resistant pivoting link and a compact design to fit in a bag or pocket.