[Premium Quality]: This straight pneumatic fitting is made of high quality PU and is sturdy, aging and abrasion resistant to ensure maximum strength and durability for long-lasting use. [Premium Quality] Push-in: Simple push-in design to connect with the pipe and ensure a secure connection. This pneumatic push-in fitting does not require an additional gasket. Easy to install and can be completed in a short time. Good Sealing Performance: Strong PTFE thread coated adhesive with good sealing performance. 3 Different Sizes: These pneumatic connectors include 30 pieces fittings, 10 pieces 10 mm pneumatic connectors, 10 pieces 8 mm pneumatic connectors, 10 pieces 6 mm pneumatic connectors. High Pressure Resistance: High pressure resistance, no tripping, quick release connector. Straight pneumatic fittings withstand greater pressure without tripping, easy installation, and a long service life. These pneumatic quick connectors for pneumatic fittings can withstand greater pressure without