Have a broken KLM VHF/UHF element insulator? M2 Antenna Systems offers a replacement insulator similar to the KLM part, typically used in the KLM log-cell driven 2M-70CM antennas. The insulator is machined for a 1” diameter boom. While not a perfect fit, it can also be used on a 1-1/4” boom. The insulator is machined to accept a 3/8” diameter tube for the element. These are also great for the homebrew antenna builder.