8" Step Depth. The GlowStep glows in the dark for up to 10 hours and works with any truck camper. Steps are easily added and removed and range from two steps to six steps. It's composed of 100 percent aircraft grade aluminum and stainless steel, has a built in step tread with no rivets and only the best high quality aircraft grade fasteners. The GlowStep folds up easily and stores into position. This lockable step also adjusts to basement model campers, has a Legendary Lifetime Warranty and is proudly made in the USA.