Kryptonite, a world leader in security devices, has been keeping bicycles safe for decades. The KryptoFlex 1018 Combo Cable lock boasts a braided 10mm steel cable that self-coils for convenient carrying. A protective vynil cover keeps bike frames happy. The 4-digit number combination dial can be reset as often as you want without tools. The KryptoFlex 1018 Combo Cable weights about 1.25 lbs.