Our tig cups are suitable for welding stainless and titanium, this kit is presented in a plastic case with foam insets; the foam colour may vary Individual ceramic cups: #5, #6, #7, #12, #14, #16, #24 (PINK) #10 #12 #14 #18 #20 (WHITE) The pink kit includes a PTFE sealing insulator, a stubby gas lense adaptor, (#17 #18 and #26 TIG torch compatible) a stubby 2.4mm collet and four pink ceramic cups (#12 #14 #16 #24) with stainless steel mesh diffuser inserts that offer increased gas coverage and precise welds at low flow rates and up to 4" of tungsten out The white kit includes 5 white ceramic cups (#10 #12 #14 #18 #20) these are cups and diffusers only TIG torch not included