The Weck Method 4lb RMT Club is a heavy strength training swing designed for various sports like tennis, golf, and baseball. Made of durable plastic material, this black club weighs 4 lbs and is perfect for targeting specific muscle groups such as the torso, chest, legs, glutes, shoulders, arms, back, biceps, triceps, abdomen, thighs, and full body. Manufactured in the United States, this club is ideal for gym and training workouts as well as weightlifting to help improve overall strength and performance.