Usage Tips:Features: Crafted from high strength ABS, this base offer excellent impact resistance and wearability, ensuring long lasting use and seamless installation without addtional tools.Perfect for various scenarios such as daily commuting, leisurely riding, or participating in motorcycle event, ensuring your gear is constantly in top condition for safe rides.With a lightweight designs that reduces neck strai, personalizing your riding experience while maintaining optimally comfort and stability.Our helmets base mount boasts a hassle free installation process, requiring no additional tools, allowing you to securely attach it to your helmets in no time.For extreme sport enthusiasts, this base mount is the ultimately accessory for anyone passionates about skiing, skateboarding, or cycling.Specifications: Component:ABSSize:Approx.7.5cm/2.95inchColor:BlackFor HJC C10Package Includes: 1 Pair Mounting Fix Basenote: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item.Thanks for your understandings.