The structure of this lens base is simple, and it can be installed quickly by fixing it with screws.<br> The lens base can be used to hold and fix the helmet lens and allows the lens to move up and down.<br> It is made of high quality ABS material, which is lightweight and durable.<br> The length of type A is 10cm, the width is 4cm, the height is 1cm; the length of type B is 8cm, the width is 3.2cm, the height is 1cm.<br> The type A is suitable for AGV K3 K4, the type B is suitable for AGV K1 K3SV K5.<br> Item Name: Helmet Visor Base<br> Material: ABS<br> Size Details:<br> Size:<br> A: 10cm x 4cm x 1cm/3.94" x 1.57" x 0.39" (Approx.)<br> B: 8cm x 3.2cm x 1cm/3.15" x 1.26" x 0.39" (Approx.)<br> Notes:<br> Due to the light and screen setting difference, the item's color may be slightly different from the pictures.<br> Please allow slight dimension difference due to different manual measurement.<br> Package Includes:<br> 2 x Shield Gear Plates<br> 4 x Screws