Kitchen knob protector for children/babies

Just a simple protector for my stove knob that my son kept turning on and off. Made with PLA and I cut adhesive velcro to the size of the base of the protector. It's already been tested and my son can't take it out, so it works well (and is quite strong). It must be printed without supports (print with the narrowest part facing down). I recommend cleaning both the base of the protector and the kitchen with alcohol so that the Velcro adhesive sticks correctly. My kitchen knob is 52mm in diameter and 32mm high. It must be printed upside down. Not supports needed. Infill 5% is fine.