GeekOn! Dice Tower (Black): - Rules of Play says:
Our fully folding Dice Tower that can be stored and transported with ease yet durable enough for acrylic or metal dice of all different sizes. Assembly is super easy and takes just a few seconds. Attaches to either our standard size or XL dice trays. Dimensions: Flat: 8.7" long x 6.8" wide x .5" thick Assembled: 7" tall x 3.9" deep x 3" wide