This is a pair of replacement Differential Gaskets for the Axial AX10 Scorpion Rock Crawler. FEATURES: Fiber construction, grey in color Replaces worn or damaged differential gaskets INCLUDES: Two Differential Gaskets REQUIRES: Installation following the model manual SPECS: Outside Diameter: 1" (25mm) Inside Diameter: .67" (17mm) Thickness: .020" (.52mm)