Features:Made of durable PC material, these shield bases are built to withstand the toughest riding conditions and provide reliable protection for your helmet.Replace your worn-out helmet shield base with ease using our replacement spare parts, including screws!Easily to install, to use, convenient, fast and flexible.Durable and practical, standardized design, can be used for a long time.Fit for MT 4 HelmetSpecifications: Material:PCPackage Includes: 1Pair Helmet Visor BaseNote: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.