Choose the T-Mullion Light Baffle in an application where separate images are being projected on each screen panel and a small amount of space between each image is desired. The T-Mullion is 11/16" wide and features a flat black finished. To be used with rigid rear projection screens 1/4" thick up to 60" high. Custom sizes available. Weight: 5 lbs. Dimensions: 36"Lx3"Wx4"H Constructed from a sturdy aluminum extrusion with steel projector cradles, Da-Lite,s 3D Projector Stackers are the perfect mounting solution for front or rear projection stereoscopic 3D displays. Available with two shelf sizes, either 10" x 19" or 19" x 33 ½", the 3D Projector Stackers will accommodate the most common projectors in the market. Each unit has two cradles to mount two projectors in either a table top or inverted format. Because projector alignment is critical to an excellent 3D display, each cradle offers a host of fine tuning adjustments to make image alignment simple and efficient. Optional filter holders and cooling fan accessories are available for use with polarizing filters.Choose the Zero Gap Light Baffle in an edge-to-edgeimage application. The "wedge" shape allows the projected images to match seamlessly with virtually no visible gap between the screen panels and preventslight from one projected image from spilling over onto the screen panel beside it. To be used with Da-Plex projection screens 3/8" thick up to 60" high or 1/2" thick up to 84" high.