Maximize your STEM learning environment by providing a centralized mobile resource center with the Preschool STEM Cart by Whitney Brothers! Among the most enriching disciplines today, teaching STEM (Science, Technology, Engineering & Math) is more critical than ever to ensure our continued technological growth. This cabinet’s front features three shelves that are proportioned to accommodate three shallow Gratnell trays on the top, three medium Gratnell trays in the middle and three large Gratnell trays on the bottom [all trays and three interchangeable fitted lids included]. The back side of the cabinet features a top-to-bottom pegboard, a big vertical pocket shelf at the bottom to store large papers and taller items or containers, and an accessory package that includes 10 J-hooks, 5 red plastic trays and 5 spring clips to hold and organize tools and supplies. A dry-erase marker board sign atop the cabinet announces project themes or cart contents. Mounted on non-marking heavy-duty locking casters for easy mobility, even when fully loaded.