Safely elevate your shorter employees working on conveyors or fixed counters. The Shure-Steps are 500-pound rated heavy duty Safety Step Stools that won't tip or slip. Don't forget that your mechanics will love our step stools too. The Shure-Step inventor was a mechanic that slipped and fell from a plastic milk crate working on a 4-wheel drive truck. He designed the first stackable step stool for mechanics.