Grommet Mount Base for DS100 Adapts any DS100 for attachment through grommet hole in a worksurface Benefits Rock-solid base keeps monitors in place. Sturdy steel construction. Conserves desktop space by eliminating freestanding platform. Part Number: 60-350-200 Description: Grommet Mount Base for DS100 (black) Mounting Options: Attach through worksurface hole 3/8" to 3" (10 to 76 mm) wide and up to 3-1/4" (82 mm) thick. For maximum support, screw should be centered through hole Desk Clamp Base also available. Contact Ergotron for details Note: For 33-284-200 (DS100 Quad-Monitor Desk Stand), two (2) Grommet Mount Bases are required Includes extra cable-management ties and straps Shipping Weight: 5 lbs (2.3 kg) Warranty: Lifetime