Features: Engineered exclusively for helmets, this base mount lock buckle ensures a secure helmets attachment, enhancing your safety on the road. Crafted from plastic, the accessory offer excellent compression resistance and anti slip performances, making it an essential upgrade for your helmets longevity. For cycling enthusiasts, professional cyclists, and motorcycle riders who demand a perfect fit and uncompromised protection from their helmets. Whether you're embarking on a cycling, motorcycle journey, or hitting the race tracks, this lock buckle ensures a comfortably snug helmets fit for all your outdoor adventures. Simplify your helmets maintenance with this easy to use lock buckle, designed for quick adjustments and replacements, ensuring your helmets is always ready for action. Specifications: Material: Plastic Size: As Shows Type: 1/2 Package Includes: 1 Set Helmets Side Plate Visor Clip note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.