Leech Tube for easy Latching. The leech tube has a Multi Purpose Use. The tool is used to aid in the easy attachment of leeches for feeding from its host. This leech instrument can fit up to 20 hungry leeches! This tool makes it easy for you to achieve the most targeted leech placement possible. Material: Clear Plastic (Recommended). If you prefer to purchase a different variety leech latching tool, such as the leech dispenser, please see our for more options.