Surface is non ghosting and can be used with most dry or wet erase markers. Dual wheeled casters offer full mobility and lock in place for secure positioning. Tested to meet ANSI/BIFMA quality standards for safety and performance. Warranty: Three years. Made from hardboard, metal and plastic. Assembly required. 34.72 in. W x 18.11 in. D x 54.25 in. H (30.4 lbs.). The Bush Business Furniture Freestanding White Board Screen with Wheeled Base provides an ideal visual aid for training and brainstorming sessions. Lightweight and easy to maneuver, the rolling White Board can be used in an office, classroom or conference center as a collaborative tool or as a portable privacy screen. The surface is non-ghosting and compatible with most dry or wet erase markers.