Our trimmers have the capability of doing both. We offer wet tumblers for wet trimming and dry tumblers for dry trimming. This is a major benefit because you can purchase one machine, with an additional tumbler and now you have the capability to trim wet or dry flowers. Our dry tumbler have a smaller cutting surface than the wet. If you were to run dry product through a wet tumbler, you would have excess loss of flowers. Keeping the yield high is the biggest advantage to having a specific tumbler for both methods of harvesting, wet or dry.