Studio-98 32" x 48" (80x120cm) Rectangular Softbox and Speedring Kit Fit ALIEN BEES ALIENBEES B400 B800 B1600 WHITE LIGHTNING X800 X1600 EINSTEIN E640 Soft box tank 32" x 48" (80x120cm) Medium Size Rectangular Softbox. 19" deep. Good to turn harsh flash light into soft, difffused light for portraits. One speedring is included for Alien Bees, White Lightning or Einstein Flash Light One white diffuser front screen with velcro edges. Grid is Not mountable on this box. One white diffuser inner baffle screen to further sotften light. 4 steel support rods and a carrying bag. Easy assembly.