The cheapest redwood is African wingwood (5, tons of logs), followed by hedgehog rosewood (7,5 tons of logs). Hedgehog rosewood is a branch of African rosewood. Only African rosewood made in Gambia, Guinea-Bissau, Senegal and Mali can be called Hedgehog rosewood, with dark brown pattern and gorgeous texture. I only need to glance at it casually, and it is easy to distinguish it from African grass pear. Hedgehog is dark brown, Caohua pear is tender yellow. Hedgehog round-backed armchairs are around 6, pieces, and eleven sets of throne sofas are around 5, pieces, but they are not worth collecting for generations (hedgehogs are too common).