Gikfun Screw Shield Expansion Board for Arduino UNO R3 EK7007 It can be plugged directly into the Arduino controller. Newest Vision UNO R3 compatible. It offers a reliable and convenient solution for connecting more Arduino components to the Arduino controller Direct plug puzzle board, NO soldering needed 1 Pair of Screw Shield for Arduino UNO R1 - R3 It can be plugged directly into the Arduino controller. New Vision UNO R3 compatible. It offers a reliable and convenient solution for connecting more Arduino components to the Arduino controller Direct plug puzzle board, NO soldering needed