The Tectonic 7i, within the Li-Ning racket category, is classified as an "offensive type (power)" model, specifically belonging to the "INSTINCT" series. Lightweight and Head-Heavy for Speed: Weight: Lightweight design of W1 (approx. 78g) (equivalent to 5U) for achieving fast swing speeds. Balance: **High head-heavy (balance point approx. 312mm)**, enabling powerful smashes despite its light weight. Shaft: **Ultra-flexible or flexible** shaft design, making it easier to hit the shuttlecock even for those without much power. High Repulsion Power Due to Unique Frame Structure: Technology: Employs **TECTONIC** structure. Specifically, the unique flexible structure at the 5 and 7 o'clock positions of the frame enhances repulsion power and boosts the speed of repulsion for immediate attacks. Recommended Players: Ideal for players who seek speed and agility with a lightweight racket and prefer fast-paced games. High-Performance Model Usable by Advanced Players: The "7" in the model name indicates a grade for advanced/professional players, and it is a high-performance model often used by professional players. To Buyers on Mercari: The original grip has been removed, so please apply your preferred grip tape (overgrip or replacement grip) before use. It has been used only a few times and is a beautiful item with no noticeable scratches or stains, but please understand that it is a used item before purchasing. If you have any questions or requests for additional images, please feel free to comment. Thank you for your consideration!