This is a accurately scaled placeholder model of OPEN-SMART's 3 channel 12mm button module. No one made one yet, so I decided to share the one I made! This module is found most commonly on Aliexpress under the name, "OPEN-SMART 3 Channel Colorful Big Key Analog Button Sensor Module 3-CH Red Yellow Green Color Keys Compatible for Arduino". Before using, make sure your module measures to be exactly 42x24mm.