This alternative outdoor sensory wall is designed for our younger learners to create responsive thunder-like sounds. Have your children experiment with this child-sized acoustic wall that produces a range of sounds effects by tapping, banging and pounding the durable metal sheet. The frame is constructed from durable and nontoxic acetylated wood. This type of wood defies the elements in any seasons from shrinking, warping and rotting. Edges and corners have been rounded for safety for any environment. Additionally, all hardware is stainless steel. The total dimensions for this unit is 48”H x 30”W x 8”D. The Junior Outdoor Thunderwall is proudly made in the U.S.A. with a 10 year warranty.