JBtek Acrylic Transparent Base Plate & Terminal Optimizer Breadboard for Arduino UNO R3 Go to amazon.com Related posts Top 10 best breadboard arduino for 2022 FeaturePackage includes: 1 x base plate for UNO R3, 1 x terminal optimizer breadboard, mounting screws and nutsBase plate designed for Arduino UNO R3 Description-Package includes: 1 x base plate for UNO R3, 1 x terminal optimizer breadboard, mounting screws and nuts. -Base plate designed for Arduino UNO R3.