Made of copper and plastic, sturdy and durable. Used for Polyurethane or Nylon tubing.
Heat resistance J-head with turn freely release ring is able to bear greater and stronger impulse but won't tripping, easy to install.
Thread Diameter : 6mm; Inner Diameter(Blue End) : 4mm
Compatible with all 1.75mm PLA ABS 3D printer, works with Anet A8.
Package Content : 12 x Quick Fittings; Attention: Small parts, keep away from children.