Multiple Size Option: Available in 50mm / 75mm / 100mm / 150mm / 200mm size to fit different pipe diameters, with clear specifications for easy selection and proper fitting Effective Sealing Function: Specifically for sealing and testing sewer pipelines, providing a dependable and efficient solution for pipeline maintenance projects Wide Application Ranges: Perfect for pipeline maintenance, inspection, and repair tasks, suitable for sewers, drain pipes, ventilation ducts, and other pipe types, making it an essential tool for plumbers Rubber: Made from durability rubber for excellent wear resistance and long last in various pipeline applications, ensuring reliability sealing and testing operations Easy Hand operate: Features a manual inflation ball for simple operate, allowing quick setup and air pumping without requiring complex steps or additional tools, Manufacturer: Msioytog