The Ultimate Support LTB-24B features a pair of 2-foot long (610 mm) crossbars. Combine them with a TS-99 or TS-88 Series Speaker Stand to create a one or two tier Lighting Tree. The dual-use bars have two pre-drilled holes for mounting hardware (included) and are thick-walled for use with C-clamps (not included). Three-year manufacturer’s warranty.