This 3-in-1 Combine Universal Pill Making Machine,  will deliver three functions in one Herbs Pills  Making Machine: Pill Making * Pill Shaping and Polishing * Pill Dry-Up.  Herbal Pill Making Machine Sold with  Roller standard size 4mm. diameter.  So Herb Pills  4mm. diameter can be produced ( ball-shaped). To manufacture (ball-shaped) Herbal Pills with diameters:  3mm, 5mm, 6mm, 7mm  rollers can be purchased separately, upon special request ( 300usd each Roller)