This is the highly popular, discontinued YONEX DUORA Z STRIKE model. The performance changes depending on the direction you hold it, with the front and back sides having different characteristics. The DUORA Z-STRIKE features the "Dual Optimum System," which achieves both: ✔ Powerful smashes on the forehand ✔ Quick receives on the backhand This model is a popular and well-regarded choice, especially in men's doubles. It was used by Japanese national team player Kento Momota and Lee Chong Wei for a time. The condition is excellent, with no noticeable scratches or chips ✨ (some minor corrections have been made). Inventory number: ad123701