Improve safety of the First Class seating system with anti-tippers. Anti-tippers provide additional stability and aid in preventing backward tipping. Added stability make these a great addition to your First Class School Chair.Features and BenefitsAnti-tippers provide additional stabilityPrevents chair from tipping backwardsEasily attaches to frameProduct SpecificationsActual Product Weight: 0.79 lbs(fc 2030n), 1 lbs(fc 4030n)Overall Product Height: 10.6"(fc 2030n), 14"(fc 4030n)Overall Product Length: 4.6"(fc 2030n), 5"(fc 4030n)Overall Product Width: 1"Primary Product Color: BlackPrimary Product Material: SteelWarranty: Limited LifetimeModel # fc 2030n, fc 4030nSize: SmallDrive Item # fc 2030nSize: LargeDrive Item # fc 4030n