Infinity style, low resistance stretch band. This style exercise band commonly referred to as a "booty band". Black fabric band packed into 210D Polyester pouch. Non-slip stitching on the inside to prevent band movement  Exercise "How to Use" card pre-printed with 12 example exercises. Exercise card inserted into back of pouch. Pouch Size: 4" W x5-1/4" H. Band Size: 3-1/4" H x 11-1/2" L (when laid flat).