Features Medical material, safe and non-toxic Strong resistance to acid, alkali and salt corrosion ability Under 25℃~60℃ environment, the performance is normal and has good formability High adsorption properties, thermal stability, chemical stability, high mechanical strength, etc Small in size, easy to carry and store, convenient to use and with good performance Features: Medical material, safe and non-toxic; Strong resistance to acid, alkali, salt corrosion ability; Under 25℃~60℃ environment, the performance is normal and has good formability. High adsorption properties, thermal stability, chemical stability, high mechanical strength, etc. Description: Shell Material: ABS Resin Diaphragm material: silicone rubber Diameter: 9.5-10mm Total length: 43 mm Opening pressure: ≤0.5Kpa Maximum back pressure: ≥0.3MPa Note: Size for manual measurement, there may be an error of 0 to 1 cm, belongs to the normal phenomenon. Included: 1x valve Package List