The STEP-4 is to use on Model N More Kit M00081.
This kit contains 6 sets of NSW GR overhead footbridge railings. You get 6 sets, thats 12 stair railings to suit plastruct steps #90952. 42 x 36mm straight lenghts of railings to complete your overhead stairs. These plastruct steps are set a 34.00 degree. The railings are 16.8mm tall which represents railings that were 4ft 8 inches tall in the real world. The railings rise 82mm and are 122mm long. The first set of risers have 27 posts. The middle landing has 11 posts and is 21mm long. The second risers have 25 posts and the top landing is 5 mm long with 3 posts.