The Alvin Walnut Tabletop Drawing Board WB142 comes in a choice of 2 sizes: 31" x 42" and 36" x 48". This portable drafting board can accommodate larger sheets and drawings with ease. The walnut wood grain melamine surface is durable and wipes clean with a damp cloth. The solid wood composite construction keeps this drawing board straight and even. The corners of this drafting board are square with black vinyl-protected edges.