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 forms a 90-degree angle with the clubface. 2. Improve Swing Accuracy: The alignment guide helps players develop proper swing path and improve clubface alignment, supporting consistent ball striking and better technique. 3. Power Supply: Powered by 3 LR44 button batteries. In "INT" mode, the laser activates for 10 seconds. In "CON" mode, the laser remains on continuously until battery power diminishes. 4. Lightweight and Portable: Compact design adds minimal weight to the club. Easily attaches to most golf clubs without affecting balance or feel. 5. Practice Aid: Compatible with all standard golf clubs. Suitable for both left-handed and right-handed players to enhance swing consistency, alignment, and muscle memory during practice. Material: Plastic + Metal Color: Black Package Contents: 1 x Golf Swing Alignment Tool Note: Light and screen settings may cause slight color variations between the image and the actual item. Measurement tolerances may vary by 1-3 cm.