2 pieces Wall mounted Cat shelving (RG2)

Grey wall mounted cat play shelving (sorry no screws!) Also please note there’s a screw stuck in one of them - it fell out the wall cos I’m a terrible handyman and I can’t work out how to get the screw out. Feel free to let me know if you just want the one with no screw stuck in it! But hopefully someone handier than me can make good use of it, I really don’t want to throw it away.