Hardened steel construction gears and driveshaft for durability. The Portal axles create extreme amounts of ground clearance under the center of your axle, increasing the clearance by about 12mm. These axles are a direct replacement to any Axial AR44 axle, using all stock links. Requires the use of inner diameter 13.5mm wheel rim, Axles must be used in pairs, you cannot run a front portal axle without a rear and . Product Name: Full front and rear portal axles case Suit for 1/10 RC Crawler Axial SCX10 II 90046 90047 and so on Colour:silver Material:Aluminum alloy Package Contents: 1Pair x RC Car Front and Rear Portal Axle Housing Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.