Dice Rolling Tray Foldable Sapphire Ultra PRO’s Foldable Dice Rolling Tray offers a safe and aesthetic space for rolling dice. These trays are no bigger than a sheet of paper (8.5 in. x 11 in.) when flat, and utilize small magnets in each corner to easily pop up walls to keep dice under control when rolling. Store your dice rolling tray easily in your backpack, character folio, binder, or favorite board game box. With one side a grey PU material, and the other featuring a soft suede leatherette in one of the Suede Collection's beautiful jewel tone colors, there is a dice rolling tray for every gamer.