Description: Well-sealed pipes, leak-proof, non-deformed, never loose. Tuning valve Removable cleaning.Easy to set up, low cost, convenience, practical and safe. pressure guage for safe-area indication, pressure watching. Transparent circulation piping, fluid flow can be observed at any time. Turning Clockwise is to increase the safety pressure level,Turning Anti-clockwise is to decrease the safety pressure level. Specification: Material: ABS Plastic+Stainless Steel PU Connecting Pipe Length: approx.160 cm / 62.99 inch Size(LxWxH): approx.16x3.5x6 cm / 6.3 x1.38 x 2.36 inch Package Includes: 1 Piece DIY CO2 generator main body 1 Piece needle valve 1 Piece Pressure gauge with build in safety valve 1 Piece Complete connecting CO2 tubing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.