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 sight helps players develop proper swing path and direction, supporting consistent setup and improved swing 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 diminishes. 4. Lightweight and Portable: Compact design with a lightweight construction that easily attaches 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 alignment, accuracy, and repetition during practice. Material: Plastic + Metal Color: Black Package Contents: 1 x Golf Swing Sight Note: Light and screen settings may cause slight color variations between the product and the image. Measurement error allowed within +/- 1-3 cm.