18 Soft Plastic White Wobble Wedges - Leveling Shims For Tables/Chairs Material:Plastic Size refers to the glide

Size refers to the glide base diameter

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

1/2" high and about 1/8" thick

This is used to keep the fabric securely attached across the two rails

18 Soft Plastic White Wobble Wedges - Leveling Shims For Tables/Chairs Material:Plastic Size refers to the glideSoft Wobble Wedges for a better grip on smooth floors. Soft Wobble Wedges are super flexible non marring plastic wedge shims that easily conform to the shape of whatever they support. Their rubber like texture creates a firm grip on slick floors and also reduces rattling sounds by absorbing vibration. Wobble Wedges are flexible and can be easily trimmed to a perfect fit with scissors or utility knife. Restaurants schools and the construction industry