Each pipe cleaner measures approximately 6 inches long * ZEN the name you know & can trust for all your cleaning needs * Clean & repair old antique tube radios, T.V."s, Ham Radios / Receivers * Such as Philco, RCA, Admiral, Zenith, Hallicrafters, Sears, Brewster, Crosley, Firestone, plus hundreds more! * Arts & crafts projects for many PRE-SCHOOL, KINDERGARTEN, ELEMENTARY & JR. AND HIGH SCHOOL TEACHERS