24x36 Ultra-Black #8 boards are the blackest black available on the market. They are .055" thick, buffered pH neutral.
Union Foam Board Union Premium Black Foam Board 24 x 36 x3/16 10-Pack : Matte Finish High-Density Professional Use, Perfect for Presentations, S
Custom Printed Corrugated Plastic Boards & Signs at GotPrint
Minimalist World Map With Detailed Labels, Gray and White Wall Art, Personalized Push Pin Map, Canvas, Print. Housewarming Gift Travel Theme
20x30 at Jerry's Artarama
Crescent Ultra-black Mounting Board
XBoard Magnetic Chalkboard Blackboard 36 x 24, Chalk Board/Black Board with 2 Magnets, Black Aluminium Frame : Everything Else
8x24 - 8 x 24 Contemporary Black Solid Wood Frame with UV Framer's Acrylic & Foam Board Backing -
3/16 Black Ultra Board in Popular Cut Sizes -ccut-316BUB-SP
Fast Change Frames
Magnetic Blackboard (EXACT SIZE 47.6 x 34.6 Inch): Excellent in Writing with Liquid Chalk marker and regular Chalk, Scratch-Resistant Premium
Large 48 x 36 Magnetic Chalk Board| Wall Mounted Chalk Black Bulletin Board with Pen Tray, Black Aluminum Message Presentation Memo Board for Office
AMUSIGHT Black Dry Erase Board, 36 x 24 (2' x 3') Magnetic Large Black Glass Board Frameless Wall Mounted Black Glass Whiteboard for Office
Alert your patrons to daily specials or new menu items with this Aarco BKGB2436NT black pure glass markerboard. Whether above a bar, near the hostess' stand, or in a club, the safe tempered glass will clearly display any message to your patrons. With 1/4 thick, durable glass and a high gloss, non-porous surface, writing will be smooth while erasing will be easier than ever.
Aarco BKGB2436NT 24 x 36 Black Pure Glass Markerboard