Miếng chặn an toàn cho núm vặn bếp Zanussi

My child was pretty good in screwing early, therefore most printable stove knob caps didn't work for me. My stove from Zanussi has pullable knobs, which have some walls inside. By using the walls as a blocker, while the knobs are fully pushed in, my child couldn't rotate them anymore. To use the stove, you just need to pull the knob a bit out, so it can rotate freely again. A bit double sided tap ensure the protectors will stay at its place, as I didn't wanted to fiddle with the screws behind the knob.