FDP 12" School Stack Chair, Stacking Student Seat with Chromed Steel Legs and Ball Glides; For In-Home Learning or Classroom - Red (6-Pack), 10359-RD

Easy to clean and stack. The only problem was they can only be stacked with these type things f chairs. They do not stack with our other chairs. Not compatible.

I've been using these chairs for one year. The red part of the chair you sit in works great. It is strong, supportive, and fits the preschoolers perfectly. However, at the bottom of the silver legs are the four red balls. They started to rub away as the chairs have scooted along the floor (a vinyl floor, not carpet.) To try to discontinue the rubbing away, I bought red tennis balls made specifically for chair legs, and I put them on the balls. The tennis balls have held up fairly well, but I'm still seeing wear and tear on them, too. Just FYI.