Filler: 90% Sand, 10% ground rubber, pinch of magic pixie dust Outer cover: Synthetic suede Weight: 60 grams Diameter: 2 inches When we think of magic mushrooms we think of the magic of kicking the whimsical Shroom footbag. Filled with sand, a little ground rubber and just a pinch of pixie dust, the Shroom footbag is the players footbag of choice amongst fairies, pixies and goblins.