Nasco Whirl-Pak B01366WA 24ft Swing Sampler. 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 24 feet for flexibility in various situations. A 960 ml bottle is included. The included large snapper band holds bottles up to 1,000mL. The Swing Sampler may be used for liquids, powders, or small solids.