The RAM-VPR-103 uses a unique spring loaded mechanism that holds strong, yet provides easy removal for printer storage. At each end of the spring loaded cradle are small side clamp plates that are designed to fit cleanly around either edge of the printer. Complete kits are available as stand alone systems or integrate one with your existing RAM products. Patent Pending Compatible Devices HP DeskJet 450 HP DeskJet 460 HP DeskJet 470 HP OfficeJet 100 HP OfficeJet 250 Clamping Dimensions: Width: Min 9" to Max 15.5" Height: Max 2.5" Cradle Dimensions: (13.3W x 6.5D x 3.2H)