Half Cityscape End Grain Board: 13.75" L x 12 5/8" W x 1.5" thickness is custom made from white oak and leftovers of exotic hardwoods. It is applied with food grade beeswax conditioner. 
 
Those colors are NOT dyes or stains; they are exotic hardwoods from Brazil, South America and Africa. Others are from Appalachian in the northeast states.
 
End grain board is also the most durable because of its' self-healing feature. Its' fibrous cell structure allows the board to spring back into shape after cuts and scratches