This feed ring is a great useful accessory to keep your flake and other surface floating feeds in one place, and stop it from flowing down your weirbox before it's eaten, easing clean up and reducing waste and NO3/PO4 production.
It's M-Rack - put it to use on something else when you're finished!
This rack requires one M-Rack magnet PUK - Sold separately.  https://charterhouse-aquatics.com/shop/aquatics/accessories/m-rack-modular-system/itc-aquatics-m-rac...
Made in the UK by ITC Reefculture.
This is not a 3D printed part.
Dimensions:145mm x 60mm