Copernicus Manipulative Cleaning Tub KitWhen students return, shared manipulatives like Lego, tan gram shapes, counters, etc. will need a fast and easy way to be cleaned every day. This simple but useful tub kit includes two of our durable Large Open Tubs and a new mesh bottomed tub for a complete washing and drying set. Our tubs have been tested with Caviwipes (medical grade disinfection wipes) and bleach diluted to 2: 10.