Customized version of https://www.thingiverse.com/thing:511489

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=511489

Using the following options:

steps_text_box = 20
relief_thickness_text_box = 4
relief_height_text_box = 10
height_text_box = 127
bottom_width_text_box = 120
bottom_length_text_box = 185
bottom_corner_radius_text_box = 5
top_width_text_box = 100
top_length_text_box = 160
top_corner_radius_text_box = 5