Accessories:Protection Plate-1PCRound Head Screw 3x12-2PCSPOM Collar 3mm-2PCSProduct major function & usage:1. Made with 1mm stainless steel 304 to offer good protection for center chassis.2. Metallic surface gives better visual effect.3. POM collar x 2pcs are provided to install in between the protection plate and rear axle case, stabilize with screws.and commentsOther special notes and comments:Suitable for Traxxas 1:7 Unlimited Desert Racer Pro-ScaleInstallation : Remove original screws, install and stabilize the protection plate with screws provided.