Keep your tools nearby by connecting your Makita® Interlocking Cases to your Makita® 11 Gallon Wet/Dry HEPA Filter Dust Extractor/Vacuum (VC4210, sold separately). The Interlocking Case Adapter Plate secures the interlocking case to the top of the vacuum. The adapter plate allows the interlocking case to snap on easily and can accommodate multiple cases. It is made with high-quality materials for longer service life.