CLASSROOM UPGRADE: This student desk/chair set features a desk for all ages with a metal open book box, high pressure laminate top, lacquer edge treatment, and wide, adjustable legs that pair with the chair for ages 12+ on three highest settings CONVENIENT DESIGN: Book box attaches to desk frame at five points for superior stability; The chair's ergonomic flex back and vented seat/back provide airflow and comfort; Chairs stack 18 high for space-saving and easy storage STRONG & STURDY: Desk and chair each have a sturdy, steel frame for a static weight capacity of 300 lbs. and 500 lbs., respectively; Adjustable nylon floor glides on desk and fixed floor glides on chair protect hard flooring surfaces from damage GUIDED ASSEMBLY, EASY MAINTENANCE: Desk assembles in 30 minutes or less with step-by-step instructions; No assembly required for chair; Cleaning both pieces is easy with a water-based cleaner PRODUCT MEASUREMENTS: Desk Overall Size: 24"W x 18"D x 22.25-31.25"H; Metal Book Box Size: 20.5"W x 15"D x 5.25"H; Chair Overall Size: 17.5"W x 20.25"D x 32.5"H; Seat Size: 15.75"W x 15.5"D x 17.5"H; Back Size: 16.25"W x 16.25"H