2-spring return push button with arrow indication place of origin : Zhejiang Province, China (Mainland) brand name : NIN type : XB2-B213 / XB2-B215 / XB2-B222 / XB2-B223 contact : NO+NC (XB2-B213 / XB2-B215 ) NO+NO ( XB2-B222 / XB2-B223) remarks : 1 flush green / 1 flush red / 1 flush white /1 flush black