Every piece is unique and made to order, hand-made using solid wood so imperfections and knots (that will be filled) in the grain are to be expected as is color variation. to clean after normal daily use, simply wipe down surfaces with a slightly damp cloth, following the grain of the wood. avoid letting any liquid sit for an extended period of time to prevent stains or rings. use only water and a lint free cloth for wood tables, not other household detergent brands.