Features:These are continuous rotary encoders with switches that can be used based on digital rotation.Rotary encoders can count forward and backward during a rotation at the output pulse frequency and are very simple to use.Wide range of applications, the rotary encoder button can be applied to modern car music players.Volume and shutdown controls or data entry for data selection via LED or LCD display are also great for use with pictures.You will receive 2pcs rotary coded switches, a nice combination switch that can meet your individual needs.Specification:Material: plastic + metalSize: 0.39*0.39*0.43in/1.0*1.0*1.1cmColor: as picture shownPackage Includes: 2pcsNotes:Please allow minor errors due to manual measurement.The colors may be a little difference for the different monitor display.