The end of this sampler swings for collecting samples at different angles with a maximum of 90°, making it perfect for sampling streams from steep stream banks. The fiberglass pole extends to 3.6 meters for flexibility in various situations. (other options are available) A 960 ml bottle is included. The included large snapper band holds bottles up to 1,000 ml. The Swing Sampler may be used for liquids, powders, or small solids.