This is design to fit an arm rest about 180mm wide and can be easily modified to accommodate larger or a smaller couch.

Printed Modular Tray & Organizer! It’s made up of three parts you can assemble in different ways, left or right-handed totally customizable to fit your needs. Has a removable pocket that’s perfect for holding books, phones, pens, or whatever else you need close by.

I’ll be uploading the original STEP file for the part that attaches it to your couch, so you can modify it to fit your setup. Simple, practical,