AV Stumpfl Drape Kit Valance Bar for the Monoblox system. This frame or system component has a specified length of 386 cm (12 ft 8 in) and is identified by article number BDX-XV386. It is supplied as a single piece and is intended for use with Monoblox equipment. The listed gross weight is 3.7 kg. No projection surface, video signal connections, or video processing functions are specified.