2 multi-use, heavy-duty cylinders with intense suction action. Flexible Silicone hoses with independent on/off valves for customized use. Removable air hoses easily detach while maintaining superior suction. Easy squeeze trigger handle. Quick air release valve. Ultra flanged base for secure seal. MATERIALS: Acrylic (cylinders) Silicone (hose) ABS (handle, release valve) POM (connector, on/off valves).