Nkọwa nke Chelly Cheaxy chọrọ nnwale:
A na-agbakwunye mmiri mmiri ma ọ bụ Watse Waterse mmiri na 16mm iko ọdịbenkụ osisi 16mm nke nwere nri nri realivent na onye na-ahụ ihe. Na tube bụ polypyyyyyyyyyylene, ptfe na-acha uhie uhie ma kpo oku na ngọngọ na-egbochi ya na 150c ruo awa 2. Okirikiri Orange Hexomavalent na-ebelata na Chromium trivalium. Ntinye usoro maka usoro dị iche iche bụ 5-150PM (tụrụ na 420nm).