16 Round 7/8" Multi-Gauge Domed Glide Inserts for Furniture Tubes/Legs Material:Plastic 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

This round multi-gauge ball insert fits a tube with an outside diameter of 1-1/4" and an inside diameter hole of approximately 1-1/8" - 1-3/16" (14 to 20 gauge tube)

This oval sling insert fits the end of a Brown Jordan sling rail

Ships Fedex Ground

Center of top hole to center of middle hole is 5 5/16" and center of middle hole to center of bottom hole is 3 9/16"

16 Round 7/8" Multi-Gauge Domed Glide Inserts for Furniture Tubes/Legs Material:Plastic There are some exceptions likeThis round multi gauge domed insert glide fits a tube with an outside diameter of 7 8" and an inside diameter of approximately 3 4" (14 to 20 gauge tube).