Note:Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.Product Name : Push Button Switch;Contact Type : 1 NO + 1 NC;Poles : DPSTUi : 660V;Ith : 10A;Terminals Button Diameter : 40mm/ 1.6";Mount Hole Diameter : 22mm / 7/8";30mmFit Panel Thickness(adjustable) : 6mm / 15/64"(max.)Size : 60 x 70mm/ 2.4" x 2.8" (Max.D*H);Material : Plastic,MetalColor : As Picture Shown;Package Content : 1 x Push Button Switch Red Mushroom Cap 1NO 1NC DPST Emergency Stop Push Button Switch AC 660V 10A* Features: 4 terminals, 22mm/30mm mounting hole, 1NO+1NC contact type, red mushroom emergency stop latching push button switch with yellow cap.* Used widely to control the electromagnetic starter, contactor, relay and other automatic control electric circuits.