Finding White Board Accessories for your office can be hard when you need a mix of price, utility and style. Luckily, Wayfair Supply has products like the Magnetic Q-Tray - Black and 2 Locking and 2 Non Locking Swivel Casters to help narrow your search for your office needs. Search by Special Offers, Price or . With 2-day Shipping and Brands like Best-Rite® and AARCO, you’re sure to find the right Trays White Board Accessories for your small business, school or building. We make finding the right White Board Accessories easy and cost effective for commercial shoppers by putting it all on the same site – Wayfair Supply.