uxcell 2 Pcs Pneumatic Fitting 1/4" PT Air Coupler Quick Connector SM20+PM20 Product Name : Air Quick Coupler;Type : SM20+PM20 Fit Hose Diameter(Thread Dia) : 1/4PT(13mm);The Other End Size : 10.8 x 7.3mm/0.43" x 0.29"(OD*ID) Hex Size : 15.6mm/0.6";Overall Size : 40 x 15.6mm /1.6" x 0.6" (L * Max.W) Color : Silver Tone;Material : Metal Weight : 40g;Package : 2 x Air Quick Coupler