: Made of materials, the product is . Scope of application: applicable to RC Crawler Car Fine workmanship: fine workmanship, looks very beautiful. Easy to use,Easy to replace If you have any questions, please contract us and we provide you with satisfactory solutions Quality material, CNC machined Extremely compact to solve fitment issues associated with larger driveshafts One size fits most: Cut to length design. Simply chose your length, cut off of the shaft, and assemble with a set screw Length range 85mm-230mm With standard 5mm input/output ends Shaft etched with millimeter measurements to assist with measuring and cutting Splines are keyed for proper u-joint alignment Designed for Crawlers, Scalers and (not intended for rock bouncers or Formula Off Road cars) Universal Joint Diameter: 12mm Shaft Diameter: 6mm Slip-end/U-joint end Hole: 5mm Length: 85mm-230mm Weight: 73g Color: As Shown Material: Metal Package Contents: 1 * rc upgrade parts kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.