3D Swing Mentor (no box). This is a swing training device that became a hot topic, and I purchased it because it was difficult to obtain for a while. I haven't used it much, and overall it's in good condition. There are no noticeable scratches or damage on the grip or the main body. It's a training device to help you be aware of your movements during your swing, and its value seems to vary depending on how you use it and your goals. *Box and instructions are not included. This is a sale of the main body only. Please check the photos and only purchase if you understand that this is a used item.