1. Easy to Install: Slide the sleeve from the clubhead toward the grip, then insert the sight from the bottom upward. Adjust the sight left or right until the beam is at a 90-degree angle to the clubhead. 2. Improve Swing Accuracy: The alignment guide helps players develop proper swing path and correct swing plane, supporting consistent ball striking and improved technique. 3. Power Supply: Powered by 3 LR44 button batteries. In "INT" mode, the beam activates for 10 seconds. In "CON" mode, the beam remains on continuously until battery power is low. 4. Lightweight and Portable: Compact design is lightweight and easy to carry. Attaches securely to most golf clubs without adding noticeable weight. 5. Suitable for Practice: Compatible with all standard golf clubs. Ideal for both left-handed and right-handed players to enhance swing consistency, alignment, and accuracy during practice. Material: Plastic + Metal Color: Black Package Contents: 1 x Golf Swing Alignment Tool Note: Light and screen display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.