This is a mount for a compost bin that we got but needed a new mount, so this slides in and you can add more to it so it can go where ever you want. I made my own mount to fit my old compost bin holder. (compost bin linked bellow)

https://a.co/d/4lWG4Sa 

This bin was ment to go on the out side on a cabnint door but we liked it on the inside.