This is a Zett Battle Twin ST bat. Please check the condition carefully in the images. I think the urethane part is in good condition. Weight: 548g (actual measurement) This is a cost-effective product of the high-performance, high-rebound bat "BATTLETWIN" made by ZETT, which uses foamed urethane in the hitting area. While the "Battle Twin" uses foamed urethane to achieve a high trajectory by "carrying and transporting" the ball, the Battle Twin ST uses synthetic rubber in the hitting area, giving the feel of "hitting the ball strongly." In addition, this product is lightweight at 80cm and 560g, and the wide sweet spot allows for confident full swings. Furthermore, the bat body is a cap-type, giving it a luxurious appearance. It is now recommended for smaller players who found previous high-performance bats to be too long and heavy. Material: FRP (carbon) Features: Connection structure, triple-tube structure for the inner core of the hitting area Country of origin: China