Continuity test reel for remote cathodic testing on underground storage tanks or other protected structures. 7.5"dia.x6" wide spool comes standard with 250 feet #14THHN wire with alligator clips on each end. Made of heavy duty solid steel to stay put while you reel out cable.Quick cable take up also.Makes one man testing a breeze! Adjustable reel tension to control backlash. Can be used or outfitted with other types of cable also. Works great for electricians for pre-wire grouping before pulling multiple conductors in conduit.Custom made to order. Satisfaction guaranteed. Lifetime warranty on reel. E-mail me for other custom configurations or cable lengths. Thanks for looking! 20675258@iowa-industrial.com