These Wood Knife Blocks are handcrafted by A Gift of Wood. Each handcrafted Wood Knife Block measures 12 1/2 inches long, 5 inches wide, 3 1/2 inches thick and stands 10 1/2 inches high, and it is made of solid hardwoods with six slots. An ideal accessory for any knife sets. There are two slots 1/8 inch by 7/8 inch for boning and fillet knives, two slots 1/8 inch by 1 1/4 inches for heavy knives, one 1/8 inch by 2 1/4 inches for a butcher knife, and the steel slot is 1/2 inch square. All slots extend the entire length of the block. Clear lacquer varnish finish.