It's 84.5 cm and 850 grams. It's a semi-custom order, as I chose the weight and had it hollowed out. The core is completely filled. I've used it for about a month. As you can see in the photos, there are two spots where it was stepped on by spikes, but it doesn't affect hitting. It features a firm feel due to the use of high-density maple, providing a solid impact feel. • Hollowed-out model specification. The tip of the hitting area is hollowed out to improve swing-through and balance. • The knob and grip are of standard thickness, designed for easy grip handling. The overall design is "slim," with a thicker tip, achieving a semi-top balance. • Positioned as "for games," it meets the specifications for amateur tournaments, university, and adult leagues.