Color: With Cover Brand HEXAR Special features Anti theft, Anti-Corrosion, Portable Lock type Key Lock Item dimensions L x W x H 90 x 2 x 1 centimeters Material Alloy Steel About this item Anti-Saw, Anti-Cut: Crafted from high-strength stainless steel, this bicycle chain lock is 4mm thick and weighs 0.5kg, effectively resisting attacks from saw blades and other tools. Anti-Theft: The lock cylinder's upgraded version features a sophisticated structure to prevent technical unlocking. Three keys are provided and can be removed after locking to prevent forgetfulness. Waterproof, Anticorrosive, and Rust-Resistant: The protective cover, made from wear-resistant cloth, is waterproof, dustproof, and anti-friction, ensuring a comfortable user experience. The exposed surface is nickel-plated to prevent rust effectively. Versatile Use: With its ideal medium length and compressive strength, it is suitable for various applications such as bicycles, motorbikes, doors, gates, gyms, fences, and more. Portable: The compact design allows for easy storage in a backpack or attachment to a bicycle, making it highly portable.