Comes with 2.5mm Zirconia balls in the cap and 10pcs Bowl screens.

Fits on any standard 8mm stem (requires). Heated with the wand induction heater and some others but otherwise is heated with a torch.  

This is basically a cap and bowl only.  It needs a stem or WPA to work.  Metal stems may heat up quickly after repeated use but any 8mm stem should fit.  We are offering a cheap glass WPA to add.  This works great through water.  It is easily cleanable and replaceable if it breaks.