As you can see form the picture, the bamboo pieces are compressed to create a strong solid core for the bat. A bamboo core provides more strength than Maple or Oak, with comparable balance.
Bamboo, on the other hand, is made by compressing multiple pieces of material under extreme heat and pressure. This method makes it close to impossible for the bat to shatter. Also, players have reported the bamboo bats to have “excellent balance”. Bamboo baseball bats are of high enough quality to be used in Major League Baseball, but the league has yet to start using them. Aside for the obvious benefits, bamboo is a sustainable eco-friendly material. I have not had the opportunity to use a bamboo bat myself, but would love to her comments from those who have.
Read more about Bamboo Baseball Bats.