What is inside bamboo sticks?

Bamboo sticks are primarily composed of a hollow, cylindrical structure with internodes separated by nodes. The interior contains a fibrous material that provides strength and flexibility, while the outer layer is made of a tough, fibrous sheath. Inside, bamboo is filled with air, making it lightweight, and it also contains silica, which contributes to its durability. This unique composition makes bamboo a versatile material for various applications, including construction, crafts, and furniture.