The material is bamboo plywood. Suitable for training in general, university, and high school baseball. Size: 83cm, average 900g ●Color 10 (Natural) ●Features A composite bamboo bat perfect for practice. Excellent durability, recommended for practicing hitting the sweet spot. I bought it new a few years ago and used it for self-training. There is a feeling of use, so please check the photos. For those who understand that it is a used item, please consider purchasing.