The Lancer Tactical Streamline Airsoft BIO BB Bottle is a convenient and high-capacity solution for your airsoft BIO BB needs. It contains 5000 rounds of 0.25g BIO BBs, which are biodegradable and environmentally friendly. The white color of the BBs provides good visibility during gameplay. The bottle is easy to carry and dispense, making it ideal for longer airsoft sessions or events. These BBs are precision-made and polished for consistent performance and accuracy.