1/2inch Tube Straight Air Gas Pneumatic Plastic Quick Fittings 5pcs Product Name : Quick Fittings;Material : Metal , Plastic Color : Silver Tone,Black;Tube Inner Diameter : 13mm/1/2" Design : 2 Ways,Straight;Total Size(Each) : 50x20mm/2"x0.8"(L*Max.D) Weight : 75g Package Content : 5pcs x Quick Fittings