Jazzy #10 kit is the Fupa 12’s little sister , The Jazzy is made with the same patented diffuser as the fupa 12 just in a smaller package. She uses less gas for great results on mild steel typically 20 -25 CFH using 3/32 tungsten Size . You will get 2 glass cups, 1 spare diffuser and 4 orings . Please see the identify page if your new to the Furickcup products and you figure out what you will need to mount the cups to your torch. Please do not walk the Cup As we recommend with all the glass products . The ceramic versions are capable of walking.