1. Adjustable Remove Weight: 5 individual sandbags in each pack, each bag weights 0.3lbs, total weight is adjusted from 1-3 lbs pair 2. Comfort and Durability: Made of soft and stretchy mercerized cotton, and moisture absorbing material inside, breathable and comfortable to wear, long lasting. 3. Adjustable Velcro strap: its perfect fit for most sizes of ankles & wrist. great for walking, jogging, running, sprinting, gymnastics, aerobics, cycling, yoga, kick boxing, karate, workouts and more other training. 4. Multi-Purpose: it can help strengthen your body resistance, restore muscles, improve balance, coordinate physical therapy, fitness exercises etc. 5. Application: you can use it in studios, offices, homes or travel, whether you are a beginner or professional, Let’s start and get one for simple sport exercise. Adjustable Ankle Weight for Men Women Wrist Leg Weight Strap with Removable Weights for Exercise 1-3 4 5 6 8 10 LBS Pair Ankle Weight for Jogging Gymnastic Aerobics Physical Therapy - B5WAHDGAO