Perfect for any classroom space, the innovative School Stack Chairs are built for comfort and durability. Each chair features a molded seat with vented back for comfort, reinforced ribbing behind and under the seat for added strength, and steel lower back support. Don't worry about hair or clothes getting caught — our no-snag design ensures screws and other hardware don't poke through the seat. Chairs are easy to wipe clean and sanitize at the end of the day.FeaturesSCHOOL CHAIR— durable kids' chairs that stack for easy storage in classrooms, daycares, homeschools, recreation centers and moreCOLORFUL BALL GLIDES — spherical plastic glides are quiet and easy to move on carpeted surfacesCOMFORTABLE SEAT — one-piece molded seat shell with a vented back and screwless, no-snag designSTACKABLE DESIGN — chairs come fully assembled, stacks safely up to 6 high to help save space after class or during activitiesBUILT TO LAST — meets or exceeds BIFMA standards for safety, durability and structural adequacy in furniture; 10-year limited warrantySAFE FOR YOUR SPACE — GREENGUARD [GOLD] Certified for limited emissions into indoor airMinimum buy of 6 units.10-Year (Limited) Warranty10" CHAIR DIMENSIONS — each chair measures 14.75" L x 15.25" W x 20.5" H, 4 lbs; recommended for ages 2 to 5 years12" CHAIR DIMENSIONS — each chair measures 14.75" L x 15.5" W x 22.5" H, 5.5 lbs; recommended for ages 3-7 years14" CHAIR DIMENSIONS — each chair measures 16.5" L x 17" W x 26" H, 5.65 lbs; recommended for ages 6-9 years16" CHAIR DIMENSIONS — each chair measures 17.3" L x 17.3" W x 28" H, 5.9 lbs; recommended for ages 8-12 years18" CHAIR DIMENSIONS — each chair measures 20.75" L x 19.0" W x 31" H, 7.5 lbs; recommended for ages 12 and up.