Features. Constructed with a Baltic Birch Wood face and a smooth solid Poplar Wood cradle frame around the back. Cradled back ensures no warping, flexing, stretching, and makes for easy hanging. Accepts virtually any medium and is ideal for showcasing detailed or fine brushwork. No priming required. A coating of gesso can be applied if desired. 0.87 in. Poplar cradled Birch faced painting panelSpecifications. Color Natural. Collection Birch. Size 20 x 20 in.. Flat Size 0.87 in.. Weight 2.6 lbs