The helmet base accessories are made of sturdy materials, ensuring durability and excellent protective performance. The installation is simple and convenient, requiring no additional tools, saving time and efforts. Compatible with most helmets, suitable for different models. Features -Color:Black -Material:PC -Size:4.00X4.00X0.30cm/1.57X1.57X0.12in -This mechanism base set adopts sturdy materials, ensuring durability for your helmet visor. -With different visor base kits, the mechanism base accessory kit is versatile and can be used with a variety of different helmet models. -Installation of this kit is easy and can be done without the need for any extra tools, making the mechanism convenient option for . -This helmet mechanism base set is a for who want to upgrade their visor base. -Simple color and style, the mechanism base will not affect the overall look of your helmet. Package list: 6 x Helmet Mechanism Base Accessories