Accessories:Stainless Steel Round Head Screw 3x18-3PCSManual number:AR330379Product major function & usage:Support and stabilize front upper armsMajor advantages of upgrading to this product:Made with a quality light weight high tensile strength aluminum 6061 T6 to be more durable as well as a stable use.The features of general appearance of this product:GPM unique hollow design makes the part lighter, pair with our high tensile strength aluminum 6061 T6 material to achieve a durable and stable use.Other special notes and comments:Suitable for Arrma Typhon, Senton, Kraton, Talion