ITEM NAME:10Pcs 5mm Male Thread 4mm Push In Joint Pneumatic Connector Quick Fittings A1T7 10Pcs 5mm Male Thread 4mm Push In Joint Pneumatic Connector Quick Fittings A1T7 Item Name:Quick Fittings Model:JPC4-M5 Material:Metal, Plastic Color:Silver,Black Thread Diameter:5mm/0.20 inch Description: Designed for Polyurethane or Nylon tubing. Even after installation, the direction of the tube can be changed freely. Elliptical release ring help to connect tube easily by manual, no special tools required. Outside (and Inside where applicable) hexagonal wrench tightening. This Quick fittings are only used for industrial automatic apparatus and can not be applied on any medicinal equipment. Inner Diameter(Black End):4mm/0.16 inch Total Size(Each):21.5 x 11.2mm/ 0.8 x 0.4 inch (L*W) Weight : 51g Package Content:10 x Quick Fittings Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Even after installation, the direction of the tube can be changed freely.