Accessories:Diff Case -2PCStainless Steel Cap Head Screw 2.5x10-4PCSManual number:8581Product major function & usage:To protect and stabilize the differential gears ensuring them to run smoothlyMajor advantages of upgrading to this product:Made with a quality light weight high tensile strength aluminum 6061 T6 for great durability as well as cooling down the heat created. Overall, this part is a good protection for the differential gears.The features of general appearance of this product:CNC machined with 3D streamline for metallic appearance, anodized with GPM Racing signature scratch resistant vibrant alluring colors.Key selling points:Easy to assemble and fit perfect with original diff gearsWe use a quality light weight high tensile strength aluminum 6061 T6 and is then anodized with scratch resistant colorsWe also have a big selection of multiple colors available now!! Let¡¯s ¡°hop up¡± your vehicles to give them the best looks and performance on the market ¡¦ colors are available in blue, red, grey silver/gun metal, orange, green, black, brown