Antenna Element Brackets

Just a simple one folks, but could be handy. These brackets will adapt a 20mm Boom with as many elements as you like. There is an adapter for the director and reflector Elements and an adapter for the driven Element. These elements are 10mm diameter. The example photo I have provided is of a not very successful digital TV antenna I designed with the aid of software on the web (ie enter frequency and it spits out the dimensions). However I neglected to read the fine print and the dimensions