Ideal for STEM in Early Learning! Mobile garden center brings nature into the classroom and engages children in hands-on learning about how plants grow when they plant seeds, water the soil and follow the evolution of plant life. Stylish, sturdy and mobile, the cabinet features a top shelf that accommodates 28 (included) clear plastic planting containers (3 in.H x 4-1/4 in.W x 4-1/4 in.D), a middle shelf with a vertical center divider that creates a 6-1/2 in.H x 36 in.W x 9-3/4 in.D storage compartment on each side, and a bottom shelf compartment (9-1/2 in.H x 36 in.W x 19-1/2 in.D) that accommodates two Gratnell trays with lids (included) to store additional materials such as seeds, plants or soil (not included). Mounted on four heavy-duty non-marking lockable casters for mobility. The 19-1/2 in.W cabinet easily fits through standard door openings. Constructed of beautiful, durable Birch plywood with safe, non-toxic natural UV finish that won't yellow and withstands rigorous use.