I created this version of my Scrub Daddy holder to be hung inside the sink. This allows the sponge to drip dry without needing a tray. I also added a slot in the mouthpiece so water can drain down through it. The hook is scaled at 31mm wide. So it should fit the majority of these dual basin type sinks well. The model can be scaled on the Y axis as it lays in the 3MF file in order to customize the fitment for your sink. Just take into consideration that the starting dimension for the hook is 31mm and go from there. Assembly is easy. The face pieces are designed to fit snugly into the face plate. Just use your favorite glue to keep them in place. Enjoy!!!