ECR4Kids 14" School Stack Chair, Chrome Legs with Ball Glides, Red (6-Pack) School Chair Pack  set of 6 durable kids chairs that stack for easy storage in classrooms, daycares, homeschools, recreation centers and more Colorful Ball Glides non-marringcomposite ball glidesare quiet and easy to move on carpeted surfaces Comfort-Molded Seat  one-piece molded seat shell with a vented back and ergonomically designed contours for comfort Built to Last  meets or exceeds BIFMA standards for safety,durability and structural adequacy in furniture; 10-year limited warranty Certified and Safe  chairs are GREENGUARD [GOLD] certified for minimal emissions into indoor air during product use Chair Dimensions chairs measure 16.5" L x 17" W x 26" H, 5.65 lbs; recommended forages 6-9 years