Holman Under Shelf Bracket Medium Model 48261Holman Under Shelf Bracket Medium Model 48261 The Holman ProStow undershelf brackets (when used with 48258) allow Milwaukee Packout toolboxes and organizers to be mounted under a standard Holman shelf. Make use of typically unused space while keeping everything organized and within reach. Features and Benefits: Easy access to each Packout unit without having to unstack them or remove them from the shelf. 50lbs weight capacity per shelf. Adjustable