RIck - Itdoesn't make much difference what you use for an end insulator as long as it insulates. I don't use end insulators, I use nylon monofilament to support the ends, just tying it to the ends of the dipole with a double sheet bend knot (see your Boy Scout Handbook). It will work great, particularly indoors. - Dr, Megacycle KK6MC/5 -- James R. Duffey KK6MC/5 Cedar Crest, NM DM65