Features 1. Suitable for all half helmets, full helmets, and crash helmets. This cable lock can securely fasten your helmet, bag, jacket, shopping bag, and other accessories. 2. Fits handlebar tubes, engine guards, rear bumpers, frame tubes, or any long straight pipe section with a diameter of 2228 mm. Compatible with motorcycles, street bikes, scooters, electric vehicles, and bicycles. 3. Constructed from aluminum alloy for durability, safety, and resistance to water, rust, and corrosion. The thickened shackle supports up to three helmets simultaneously. 4. Compact and portable design for easy installation and convenient carrying. 5. Securely attaches directly to your bike with the included black universal helmet lock. Specification Name: Anti-theft Lock for Motorcycle Helmet Material: Aluminum Alloy Suitable Handlebar Diameter: 2.22.8 cm Applicable Models: Motorcycles, Electric Vehicles Package List 1 Lock Body 2 Keys