Replacement chin strap for petzl 2019 vertex and str a to helmets. DUAL CERTIFICATION MODE: Features a selector clip that switches between High Strength (>50kg) for work at height and Low Strength (<25kg) for ground safety. UNIVERSAL COMPATIBILITY: Designed to fit all versions of the Petzl VERTEX and STRATO helmets manufactured from 2019 onwards. EXTENDED OPTION: Available in an Extended length version (A010FA02) to accommodate larger head sizes or provide extra clearance for bulky hearing protection. EASY INSTALLATION: Simple click-in attachment points allow for rapid replacement of worn or damaged straps without tools. ADJUSTABLE FIT: Equipped with lateral separators to precisely adjust strap length and ensure the helmet remains centered on the head. Size Extended Color Yellow/Black Brand Name PETZL Model Name DUAL CHIN Unit Count 1.0 Count Item Weight 0.1 Pounds Manufacturer Petzl Model Number A010FA02 Product Style Accessory Inner Material Textile Outer Material Polycarbonate (PC) Item Dimensions 5.51 x 3.94 x 0.98 inches Additional Features Adjustable Strap Included Components 1 Chinstrap Warranty Description 3 Year Manufacturer Age Range Description Adult Manufacturer Part Number A010FA02 Recommended Uses For Product Climbing Global Trade Identification Number 03342540826625