Easy to use - Place your arms and elbows into the posture correction swing elastic band to establish and maintain a proper distance between your left foot and your right knee. Muscle Memory - Keeps your arms and body in sync by wearing this Golf training armband to helps keep back elbow close to the body during swing. After long-term use, you can swing in the correct posture and angle when you remove the band. Perfect Swing Posture - For beginners, it is easy to bend or raise your arms when swinging, which change the direction of the power when swinging. With the aid of a golf swing assist device, you can keep your arms straight and keep the direction of the swing force consistent with the front. Comfortable to wear - It is made of high-quality elastic fabric to provide maximum comfort when practicing. Increase shoulder flexibility, distance and control, perfect for both left and right handed golf beginners! One size fits all - Due to the elasticity of the armband, it is suitable for everyone. Perfect for golf training or on the practice range. Colour:Black-Green & Black-Red Material:elastic band Size:About 295x75x125mm Package Contents: 10 * Golf Training Aids Elastic band Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.