Hello, Hlgb - Thank you for your feedback! This organizer shelf is part of our LINK system and is meant to be connected to our LINK Wall Rail (Model # STM504). Check them out at the link below! We hope this provides clarity! And if you'd like to discuss your experience further, then please feel free to email us anytime at Reviews@RYOBItools.com.
RYOBI LINK Wall Rails (2-Pack) STM504: https://www.homedepot.com/p/RYOBI-LINK-Wall-Rails-2-Pack-STM504/317950773