Being gentle on cannabis is a function of minimizing the number of times it goes around the tumbler while touching it as little as possible. You want cannabis to move through the machine efficiently with a lot of access to cutting blades, cradled by a tumbler that has minimal surface area to block it or collect resin. The Mobius AirThread Tension Tumbler is made of stainless steel cable which means cannabis has very little surface to touch and more access to blades than any rival trimmer. Resin stays on the flower where it belongs. Three independent blade cartridges offer three times the cutting power, resulting in cannabis trimmed to perfection at a quality and rate unmatched by any other cannabis trimming machine on the market.