The Vivid Magnetic Foldable Dice Rolling Tray from Ultra PRO provides a secure and aesthetically pleasing area for rolling dice. While flat, these trays are no larger than a sheet of paper (8.5 in. x 11 in.) and feature small magnets in each corner that allow the sides to pop up effortlessly to keep dice under control when rolling. You can conveniently store your dice rolling tray in your backpack, character portfolio, or beloved board game box. The interior and exterior are composed of the same vibrantly colored material. Easily collapse and configure your dice rolling tray with magnetic corners that close in, out, and upside-down High quality materials ensure your gaming table is protected, with strength to support your heaviest metal dice on either side Measures 8.5" x 11" when flat Fits easily into character folios, binders, and many board game boxes Comes in all nine Vivid Collection colors: black, white, red, purple, yellow, green, blue, teal, and light blue