DIFFERENT COLOR ADJUSTABLE RESISTANCE BANDS: Yellow (15 lbs.), Red (25 lbs.), Blue (35 lbs.), Green (45 lbs.), Black(55 lbs.).All exercise bands are 47" in length, and can be used alone stacked in any combination. TOP QUALITY MATERIALS: Our premium workout bands are made of the highest quality, using 100% Natural Latex with high elasticity and extra thick high-grade silicon that will not dry out, snap, or deform. Developed with you in mind, each tube band is double layered and carefully constructed to provide maximum resistance! MULTIFUNCTION & PORTABLE: Our fitness bands can apply to different types exercise.Perfect for toning your arms,shoulders, chest, glutes, legs etc. Also comes with convenient travel pouch.You can also take your bands to Gym, Office, and even workout on vacation!