General description The 2 Pack 90cm Combination Bike Lock is designed for high security and convenience. Made with a sturdy lock cylinder and bolts from high-strength zinc alloy, this lock is resistant to breaking and damage. The galvanized chain, with a diameter of 4.5mm, is crafted from high-strength alloy steel, making it difficult for thieves to cut through. The lock features a protective ABS sleeve to prevent rust and scratches during use, ensuring durability and ease of handling. Technical specifications Length: 90cm Chain diameter: 4.5mm Material: High-strength zinc alloy and alloy steel Combination: 5-digit code with up to 100,000 possible combinations Usage The bicycle combination lock is versatile and can be used to secure various vehicles to different objects, including: Trees Fences Pipes Motorcycles Scooters Strollers Stair gates Lawn mowers Tool boxes Simply attach the lock firmly to these objects for enhanced protection against theft. Other information The lock features a scratch-resistant nylon cover that is heat-resistant, corrosion-resistant, and wear-resistant, protecting both the lock and the bicycle frame.