This is a platform for any small pets to climb up or go under. The dimensions of it are 5in x 5.5in x 2in. There are several .1in x .1in squares on the ramp for grip to make it easier for the animal to climb up on. I also made several .02in groves at the top of the platform to give the animal more grip as well as make it look better. I also made a larger version for a 5.5-gallon tank that also has a water dish insert that you can print. The larger of the two platforms fits on the smaller side of the 5.5-gallon tank perfectly. The water dish is removable to change the water more easily. If you are printing this, I would recommend you use an outer brim as well as set the bed temperature around 75F to keep the edges from warping. There should not need to be any support used and it should be printed so that the top of it (The face with the grooves cut into it) should be on the print bed.