Portable Universal PCB Board Holder Repair Tool Platform Fixed Support Clamp TE721

Here we have a very popular LCD Keypad shield for the Arduino.
It includes a 2×16 LCD display and 6 momentary push buttons. Pins 4, 5, 6, 7, 8, 9 and 10 are used to interface with the LCD. Analog Pin 0 is used to read the pushbuttons.
The LCD shield supports contrast adjustment and backlit on/off functions. It also expands analog pins for easy analog sensor reading and display. Below the shield can be seen attached to an Arduino UNO.