CenturionPro Mini, Original and Silver Bullet 3.0” Wheels (Pair)These durable wheels are customized to allow the seamless movement of our CenturionPro Mini, Original and Silver Bullet wet tumbler and dry tumbler trimmer machines. The 3 locking wheel (pair) works in sync with the CenturionPro Mini, CenturionPro Silver Bullet and CenturionPro Original. Using the 3" wheels on the rear side of the trimmer and combined with the 2. 5" wheels on the front end gives the unit a perfect slope to allow the buds to flow