Made with walnut, curly maple and padauk for the splines. The box has a false bottom and the compartment slides out to the side. The compartment release key is a section of the curly maple liner. It’s pulled up, flipped around and pushed back in to compress the wooden spring and release the compartment. The inside of the secret compartment was finished with suede flock. The lid had a hole from a knot and was filled with epoxy.