As the founder and creator of Elite Glass, Rob Dworkin, describes this piece:

19mm joints. The female is made custom in House. The male joint is German made Lenz. These are good to have an adjustable arm to make water pipes easier to use and to be able to see what you are doing better. These are also good for concentrate so you have more room to move a torch around the nail without worry about hurting your pipe.

Photos courtesy of Rob Dworkin (Elite Glass).