10Pcs 4 x 3 Matrix 12 Key Array Membrane Switch Keypad Keyboard For ArduinoDescription:Pad Size: 68.9 x 76 x 0.8mmCable length: 85mm (include connector)Connector: dupont 7 pins, 0.1 inch (2.54mm) PitchMount style: Self-AdherenceMax. circuit rating: 35VDC, 100mAInsulation spec.: 100M Ohm, 100VDielectric withstand: 250Vrms (60Hz, 1min)Contact bounce: ≤5msLife expectancy: 1 million closuresWeight: 7gPackage included:10 x 12 key membrane switch 4 x 3 Matrix Array