Large Utility ShelfThis secure and sturdy shelf supports projectors, printers and other small peripherals. Compatible with TeachWell, WorkFit-C and StyleView 31/32-Series Carts. Also attaches to vertical surfaces using Ergotron Wall Track or Wall Plate. - Provides a convenient location for projectors, small printers and other small peripherals- Large surface accommodates a wide variety of customer-supplied equipment. Install the shelf with either its short or long edge facing cart or wall- Easy height adjustment: Optional thumb screws are included for quick repositioning. Use included security screws when theft deterrence is requiredStable and secure mounting- Includes straps to hold equipment in place- Theft-deterrent security lanyard attaches to projectors- Security screws can attach shelf to cart, preventing its removal without special tool