Superior shipping protection for valuable paintings, prints, and photos. Heavy double-walled sides are doubled again by a telescoping top and bottom box. The top and bottom faces of the box are reinforced by the heavy Triple-Wall pads that are laminated to the inside liner. Firm but forgiving foam in thick customizable blocks suspends your artwork for maximum protection.This package has been tested and certified by the International Safe Transit Association (ISTA) to the highest standards of packaging performance.* All sizes are given in LxWxD format.