These wood painting panels are manufactured in the USA from top-quality birch, sanded to render a smooth, firm surface. Cradled with a poplar wood frame, panels won't flex, stretch, or warp. Flat, Deep cradle, Extra Deep cradle, Oval, or Round. - American Easel Wood Painting Panel - 24" x 24" x 2-1/2", Extra Deep PanelAmerican Easel Wooden Painting Panel, 24X24 EXTRA DEEP -