These IBO character plates have an awesome design to them, showcasing characters from the show with a really great looking color scheme. The arm of the base fits into the "butt" of the model kit very well and is sturdy. The arm can be adjusted at the base and at the end of the arm and locks into place with a tooth-groove system. You can place the arm into the top of the action base, or onto the removable extra plug holder plate. The removeable plate snaps into the action base. There is also an extra plug on the end of the arm so you stand the action base itself up to be used as a display piece. The one big downside to this action base design is that it is not compatible with the Action Base 4 and 5 plate connectors and arms. The ridges on the base of the plate are longer and narrower than the other action base. The holder arms are also a different size so you can't even use the arms from the other action bases. NOTE: multiple copies of the IBO character action bases will connect with each other, just not the other styled bases. Overall, this action base looks amazing. I would suggest picking up a few if you want to be able to connect them together, or just have an extra one to display and show off the character artwork.