36 Nylon 15/16" I.D. Chair Desk Table Patio Furniture Snap-on Glide Caps Material:Nylon Head of bumper is 1/2"

Head of bumper is 1/2" in diameter

1/2" high and about 3/16" thick

Felt base sled base glides protect your floor from marks or scratches

There should be a metal plate or washer between the bolt head and the fiberglass rocker spring plate

36 Nylon 15/16" I.D. Chair Desk Table Patio Furniture Snap-on Glide Caps Material:Nylon Head of bumper is 1/2"Snap 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.