YO416B Made of high quality metal. Stable performance. Designed to repair or replace old or broken tail boom brace for 450V3 helicopter only. Suitable for Align 450V3， KDS 450V3 and CopterX 450V3 helicopter. Offers your 450V3 helicopter a new look. Package Details Weight: 13.91 g Size: 29*4*0.5 cm Package Includes 2 × Tail Boom Brace