GREENGUARD Children & Schools certified. Safety first! We've built up to 300% more tip-resistance into these units. 16"W base increases shelf space with sections for storing books, puzzles, games & more. Our exclusive Tip-Me-Not design provides a safer environment for everyone in your classroom. 100% Healthy Kids Plywood with our exclusive Tuff-Gloss UV finish. On heavy-duty easy rolling casters for mobility. 30"h x 48"w x 16"d.