The Rubbermaid RBMD7805L2 High Chair Caster Kit includes a set of four replacement casters designed for compatible Rubbermaid high chairs. These casters help support smooth movement and make it easier to move high chairs when cleaning or arranging dining areas. Replacing worn or damaged casters can improve mobility and help maintain the proper use of the equipment. https://partsfe.com/rbmd7805l2-rubbermaid-high-chair-caster-kit-4-caste/1-RBMD7805L2.html