Castello Boxwood, Calycophyllum multiflorum, originates in South American mostly in Paraguay. Although not a true Buxus species, it shares many of the same attributes that make Boxwood such a desirable species. You could not ask for a better wood to mill ? this is perhaps the finest grained wood in the World. It has fine, uniform texture that is silky smooth & takes a high, lustrous finish. The wood is able to hold extremely fine detail which makes it ideal for model ship building, instruments, carvings, engraving, inlay, piano keys, precision instruments, textiles, turnery, chess pieces, veneer, bobbins, intricate turnings, shuttles, spindles, bow staves, spools & more! Colors range from creamy yellow to variegated brown/olive-like heartwood that is generally only on one face.