Accessories:Stainless Steel Flat Head Screw 4x10-1PCManual number:AR320196Product major function & usage:Support chassis and stabilize the rear gear boxMajor advantages of upgrading to this product:Aluminum 6061 T6 material made for better strength, tolerance and more stable for the end users.The features of general appearance of this product:Distinctive 3D cut with hollow designOther special notes and commentsSuitable for ARRMA SENTON & TYPHON