The BeatBoost Ankle Wrist Weights are a set of 4 adjustable weights designed for men and unisex adults. These black weights feature a buckle clasp, rubber anti-slip particles, breathable fabric, and bottom reinforcement. Made of rubber and fabric with steel plates as filling, they are suitable for gym & training as well as running & jogging. Each weight has dimensions of 10.5 inches in height and 11 inches in width for the arm, and 12.9 inches in height and 12.5 inches in width for the leg, providing a comfortable and secure fit during workouts.