Many childcare centers have been built with sinks that are not the right size for the children who are occupying that classroom. A difference of a couple of inches can make the difference for the sink working or being too high, requiring a step stool in order for children to reach it. If you are one of the unfortunate centers that had a designer miscalculate the height of your sinks and you need a safer step than an open step stool, check out the Step-Up-N-Wash at www.wooddesigns.org.
This step seems to be safer than others I have observed and includes handholds,
closed backing and non-slip treads.