Strength Training: Increases resistance for leg exercises like squats, lunges, and leg lifts. Endurance Training: Enhances walking, running, and aerobic workouts for improved cardiovascular fitness. Rehabilitation: Strengthens muscles and improves joint stability during recovery from injury. Flexibility & Mobility: Deepens stretches and enhances range of motion in stretching exercises. Sports Training: Improves strength, speed, power, and agility for athletes. Balance & Stability: Activates the core and enhances coordination in balance exercises. Posture Improvement: Helps with better posture and alignment during walking or exercises 1Outer Material Neoprene: Cotton or Nylon: 2. Filling/Weight Material Sand: Steel Shot: