A simple set of steps which is much cheaper to print than buying organizing steps online.
Customizer is for the hollow back steps, but .stl & openSCAD files for solid shape are also included.
Recommend using a brim and a low infil particularly if printing the solid steps. The large rectangular blocks are particularly prone to warping.
Can be printed at any size or with any number of steps if customized using the Thingiverse customizer or changing the variables at the top of the OpenSCAD file.