【Keyless Safety Lock & 5-Digit Combination】This chain bicycle lock is a keyless convenient combination bicycle lock, no need to worry about losing the key. With an advanced 5-digit combination lock that allows up to 100,000 possible codes, it is almost impossible to crack and more secure than other 4-digit locks.

【Strong Cut-Resistant Chain】This bike lock cable head is made of zinc alloy, so it is difficult to break. The bicycle chain lock is made of 0.24-inch manganese steel, with cut resistance and protective galvanized coating to prevent scratches and sawing, and has a long service life

【Humanized Design】The smooth lock head of this bike chain lock is made of PE plastic, which can help you turn the lock accurately without blocking. Easy to set up and reset your own personalized digital portfolio.

【Wide application】This bicycle chain lock has a wide range of applications, very suitable for bicycles, motorcycles, gates, fences, grills, tool boxes, ladders, etc. As long as this bicycle lock suits you, you can use a bike lock combination to protect your valuables freely.

【Waterproof Protective Cloth Cover & Portable Size】Bike lock chain is enclosed in a flexible protective cloth cover to prevent scratches and saws and has a long service life. The bicycle chain has an overall length of 39 inches, a thickness of about 0.24 inches, and a weight of 1.41lb. You can wrap the combination bike lock on the bike frame, or you can put it in your backpack and enjoy a beautiful day in an unprecedented way!