48 Nylon Flat Stem 3/4" Bumper Glides for Tubular Chair Bases Material:Nylon They cannot be zinc plated

They cannot be zinc plated anodized galvanized or metalized because those finishes will cause harmful fumes for the welder

Fits a 1/2" inner diameter hole

These parts are made to be welded to the legs of wrought iron furniture

9/16" Long umbrella rib clips for repair/replacement

Cap has an outside diameter of 1-1/8" and overall height is 5/16"

48 Nylon Flat Stem 3/4" Bumper Glides for Tubular Chair Bases Material:Nylon They cannot be zinc platedTypically used on base of swivel chairs. The stem bumpers keep the round base of the patio chair from sitting directly on the ground. Most swivel bases use 6 to 8 stem bumpers per chair. Stem bumpers can be flat or coved (curved) to fit the shape of the tubular metal of the patio chair base. This flat stem bumper fits 1 4" hole and is about 1 2" long (the stem can be cut to fit length as needed). The base disc is 3 4" round and about 3 16" thick.