DescriptionIt features 5 digital codes instead of having to deal with keys, it's very convenient especially when you don't have any pockets for your keys. Its surface utilize steel material which can keeps the chain from scratching or pinching your leg. It is suitable for all standard bicycles, mountain bike, motorcycles and scooters.Feature- Color: Black - Material: Steel. - Size: 120 x 1.2 x 1.2 cm. - for durable and long-lasting use. - Sturdy and anti-corrosion. - Key free with very strong password open, convenient to use at night. - Well-built, heavy-duty, sturdy and easy to handle and carry. - Perfect tool for keep your vehicle safe. - Suitable for all standard bicycles, mountain bike, motorcycles and scooters. - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!