Shuretape Gaffers - Industrial grade vinyl-coated gaffers cloth tape in black.  Can be used for color coding, seaming, bundling, and protection and to hold wiring, lighting, and props. 3" wide by 60yd. spool.  Available in case quantities of 16 spools for $17.00 each. 

Don't mind the drop down box we're working on getting rid of it.