JRPanel lauches a new product, standarded Arduino 4x4 Matrix Keypad for Control System Interface. Color: red, blue, black, white Key Type: Die Pressing Material Surface: PET Matte Ink: Environmentally Friendly Ink Adhesive: 3M9448 Button: Embossed, 4*4 Length: 69.20mm Width: 76.90mm Pitch: 2.54mm Female Housing Terminal welcome to visit our site ( https://www.jrpanel.com,or contact via email service@jrpanel.com Erin