Sedeta 19mm 3A Push Button Metal Momentary Switch High Flush Reactable Waterproof Screw Terminals Start Horn Button for DIY Car Boat Mounting Hole Size: 19mm;Head Shape: High Flush Switch Rating: 3A/250VDAC;Switch Combination: 1NO Operation Types: Momentary type: push it-- on, release it -- off , self return Material: Nickel Plated Brass Degree of Protection: IP65, IK08