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 clubhead. 2. Improve Swing Accuracy: The alignment guide helps players develop proper swing path awareness and correct hook tendencies, supporting consistent ball striking and improved technique. 3. Power Supply: Powered by 3 LR44 button cell batteries. In "INT" mode, the beam activates for 10 seconds. In "CON" mode, the beam remains on continuously until battery power diminishes. 4. Lightweight and Portable: Compact design with minimal weight ensures easy attachment to any golf club without altering the club’s 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 shot accuracy during practice. Material: Plastic + Metal Color: Black Package Contents: 1 x Golf Swing Alignment Tool Note: Light reflections and display settings may cause slight variations between the product color shown and the actual item. Measurement tolerances allow for +/- 1-3 cm variation.