Basic holder for nozzles and SD card + screw bit handle for Olsson block nozzles.
Simply to print, stick it with two pieces of double side tape inside your machine.
20% for holder, 100% for handle
Just use two small pieces of double side tape to stick the holder inside UM2.
For the handle you need to push the screw bit inside with some force, use a hammer or a clamp to push, it fit very hard.