SCHOOL CHAIR PACK: set of 6 durable kids' chairs that stack for easy storage in classrooms, daycares, homeschools, recreation centers and more SELF-LEVELING GLIDES: non-marring swivel glides feature flexible bearings to automatically level on uneven surfaces COMFORTABLE SEAT: one-piece molded seat shell with a vented back and screwless, no-snag design STACKABLE DESIGN: chairs come fully assembled, stacks safely up to 6 high to help save space after class or during activities BUILT TO LAST: meets or exceeds BIFMA standards for safety, durability and structural adequacy in furniture; holds up to 225 lbs