Attema stackable spacer electrical box

Hi, these spacers come in handy when you are renovating or building a house.They fit on Attema electrical boxes, which are mounted in the wall.There are 5 different sizes (2, 3, 5, 10, and 15 mm), which can be stacked together.Only the 5, 10, and 15 mm versions have the guides that will hold to the electrical box.Depending on how you stack them, you might need to break off 2 small pins like shown in the pictures.I've printed these myself in PETG, but PLA and ABS should also be fine.You will need longer screws depending on how many spacers you add.