Steel, corrosion-resistant.
Specifications:
Width: 12mm
Mounting Hole diameter: 6mm
Steel sheet thickness: 0.6mm
Rubber thickness: 4mm
Included:
1/2 inch x 7pcs
9/16 inch x 6pcs
5/8 inch x 6pcs
1 inch x 6pcs
1-1/8 inch x 6pcs
1-1/4 inches x 6pcs
1-3/8 inch x 4pcs
1-1/2 inches x 4pcs