ITEM NAME:5/8 x 3/4 x 3 inch Shaft Adapter Pulley Bore Reducer Sleeve Bushing w/ Key #gib Store Home Promotion Hot Item Add to Fav.Material: iron. - Adapts larger wheel bores to smaller axles. Sleeve length: about 3". Sleeve Keyway slot: 3/16". 1 X Sleeve. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.