The L.E. Wilson Case Trimmer is one of the best trimmers on the market. This stand helps to eliminate the problem of trying to find away to mount the trimmer to a reloading bench. Dimensions: 5-1/4" L x 1-3/4" W x 3" HNotes: This stand comes with screws to attach the base to the trimmer, but not to attach the base to a reloading work surface. The reloader will have to source their own screws for this purposeThe case trimmer pictured on top of the stand is not included it is a separate item #487924 (Standard Trimmer) or #454606 (Micrometer Case Trimmer)