36 Nylon 1-3/8" I.D. Chair Desk Table Patio Furniture Snap-on Glide Caps Color:Off-white There are some exceptions like

There are some exceptions like Homecrest or Samsonite which use two layers of material on some of their furniture to slide the slings over an internal frame

For 1" inside diameter leg

Fits tube size: 7/8" outside diameter x 3/4" inside diameter

Fits some Medallion patio furniture

36 Nylon 1-3/8" I.D. Chair Desk Table Patio Furniture Snap-on Glide Caps Color:Off-white There are some exceptions likeSnap on nylon glide caps reduces floor maintenance issues such as rusting from traditional glides or scratching and snagging of carpet or hard floors. The nylon surface of the glide cap limits friction on your floors and therefore reduces floor scratching eliminates rust spots and reduces noise. Easily snaps onto an existing glide base. Perfect for use on cafeteria seating classroom chairs desks and event seating and difficult for students to remove.