Product name: Snap button
Diameter: 21mm/0.83in
Thickness: 2mm/0.08in
Material: Zinc Alloy
Color: Black
Shape: Round
Hole amount: 4

Feature:
Suitable for: Sweater, Overcoat, Wind-breaker, woolen overcoat
Easy to use.
Simple and elegant.
Good quality material: made of Zinc Alloy, hard, sturdy and durable, not easy to get erosion or rust, providing long servicing life.
Matchable studs and sockets: The studs and sockets of the same diameter are matchable, they can be easily buckle together or separate, effective fasteners for any sewing project.