Accessories:Wheelie Mount-4pcsWheelie Wheel-2pcsWheel Shaft-1pcStainless Steel Washer-2pcsStainless Steel Locknut M4-2pcsStainless Steel Flat Head Screw 4x20-2pcsStainless Steel Flat Head Screw 3x20-2pcsStainless Steel Round Head Screw 4x14-1pcStainless Steel Flat Head Screw 3x16-2pcsProduct major function & usage:Carry out performance of the wheelie, adjustable angleMajor advantages of upgrading to this product:1. Made with aluminum 6061 T6 for better strength and greater durability.2. The two-wheels design is more stable, multiple positioning holes allows the angle to be adjusted freely. Select higher angle is better for flipping and lower angle is more stable.3. Using the original positioning hole to install that is easy.4. The wheelie wheels are hand-made with Delrin with bearings installed to ensure smooth action. Wheel pattern is designed for better gripping.Other special notes and comments:Suitable for TRAXXAS E-REVO2.0 86086-4 & E-REVO 56087-1Installation: The wheel with a convex side is the inside. Two stainless steel washers are used on the inside of the wheel.We 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