Recommended uses: Sled based style chair, bookcases, desks and credenzas, file cabinets, stackable chairs. Use on hardwood floors, VCT, vinyl, linoleum, finished concrete and ceramic tile floors. Provides floor protection for chairs with sled bases. Peel & stick backs. Pads stick tight. Formed sides and stress relieving design ensure pad will stay on. One size fits most rail sizes; perfect for stackable chairs.