Ikea KUBBIS wall hanger extention

I've always found my KUBBIS hanger a bit awkward, then I decided to model a big knot to make it easier to hang things on it, and also designed an extention to double the number of hooks.

The big knot can be mounted using a M4 wood screw, while the extention requires a 10 mm M4 screw with cylindrical head and a threaded insert M4. A soldering iron is required to put the threaded insert. THe hole is 5.35 mm wide, as required by inserts I used. Super glue can also make the the job done, if you don't have all the hardware.