Another stabilizer tester for your keyboard, or for practice. Will fit 3 x 2u stabilizers and 1x 6.25u stabilizers, or 4x 2u stabilizers. Fits 5 pin keyboard switches. You can use 3 pin switches, but it kinda wobbly. Fits any PCB mounted stabilizers, the switches can be placed north or south facing. The plate is optional if you want to use it.