PC4-M5 BRASS PNEUMATIC CONNECTOR-NARROW HOLE

From the shop's description

PC4-M5 BRASS PNEUMATIC CONNECTOR-NARROW HOLE is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. PC4-M5 PNEUMATIC CONNECTOR QUICK JOINT FOR 3D PRINTER J-HEAD REMOTE EXTRUDER It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.