MADE OF PRESSED STEEL, CARBON CHROME STEEL BALLS FOR SMOOTHROTATION COMPLETE WITH HUBAXLES, NUTS, CONES, WASHERS, CHECK NUTS IN BRITISH/ FRENCHTHREADINGS FOR FREEWHEELB.C.P. FINISH. Open ends thick barrel Front axle 3/8 x 5.1/2 Rear Axle 3/8 x 6.1/2" or 7" or 7.1/2" Holes 20x20, 28x28, 36x36, 32x40 Hole gauge 10, 12,