The Lancer Tactical Streamline Airsoft Tracer BB Bottle is a convenient and high-capacity solution for your airsoft tracer BB needs. It contains 5000 rounds of 0.20g tracer BBs, which are designed to emit a glowing effect when used with a compatible tracer unit or tracer-equipped airsoft gun. The vibrant green color of the BBs adds a visually stunning element to your airsoft gameplay. The bottle is easy to carry and dispense, making it ideal for longer airsoft sessions or events.