The SandMaster is a succulent 14-panel footbag (hacky sack) made of a super soft and tough synthetic suede, and filled with sand.The new and improved outer cover material, tighter stitching and unique corner closures increase its durability and sand retention.The SandMaster footbag's 14-panels insure this model will stay extremely round for consistent kicks combined with the stickiest of stalls.**This footbag comes with the World Footbag Association's highest recommendation** "It takes a kicking, and keeps on sticking"!