Feature: 1. Made of fine quality Zinc Alloy, more sturdy and practical to use. 2. High securit y and drill resistant lock cylinder. 3. One Lock can lock more than one bike. 4. Easily fixed to the Handlebar, Seat Post. 5. Multipurpose, fine for bicycles, skateboards, gates \u0026 fences, grills \u0026 lawnmowers, sports equipment, tool boxes \u0026 ladders. Specification: Novel appearance design, designers around lightweight, small size, development length, easy to use and other aspects of the design of this highly practical lock. Features: Made of fine quality Zinc Alloy, more sturdy and practical to use. High securit y and drill resistant lock cylinder. One Lock can lock more than one bike. Easily fixed to the Handlebar, Seat Post. Multipurpose, fine for bicycles, skateboards, gates & fences, grills & lawnmowers, sports equipment, tool boxes & ladders. Specifications: Material: zinc alloy + alloy steel +ABS plastic +PA6 plastic +59 copper Color: Black Number of chain pieces: 26 pcs, single size: 16mm*45mm, using local carburizing heat treatment technology, hardness outside HRC45, internal HRC10-HRC25 Lock sleeve: zinc alloy + alloy steel (carburizing heat treatment hardness outside HRC45) Key: PA6 plastic +59 copper Unfold length: approx.850mm Folded Size: approx. 75 * 66 * 52mm / 3.0 * 2.6 * 2.0IN Weight: 570g / 1.26lb Package size: 150 * 100 * 50mm / 5.9 * 3.9 * 2.0in Packahe weight: 735g / 1.62lb Packing List: 1 * Anti-theft Folding Lock 2 * Loop Straps 2 * Screws 3 * Keys 1 * Lock frame Package List: 1 * Anti-theft Folding Lock 2 * Loop Straps 2 * Screws 3 * Keys 1 * Lock frame