Scanstrut ROKK Adjustable Deck Mount - No Top Plate - Modular Design. Offering 360 of rotation this 'set and forget' system ensures zero loss of clamping force over time. Locking design provides a rock solid platform and a high clamping force with monimal effort from the user. Specifications for Scanstrut ROKK Adjustable Deck Mount: Manufacturer: Scanstrut Color: Black Package Contents: Scanstrut ROKK Adjustable Deck Mount Scanstrut RL-ADM: ROKK Adjustable Deck Mount - No Top Plate - Modular Design