Size Information: Pearl s fasteners diameter approx. 9mm, socket: approx. 9.5mm; pins: approx. 9.5; plastic case: 7.4x7.2x1.7cm.Wide Application: These pearl buttons are suitable for sewing all kinds of clothes, such as shirts, suits, jackets, jeans, hats or handicrafts.1 Box 40 Sets Pearl s Fasteners: You will receive 40pcs pearl s fasteners, 2 colors: cloud white, black, 20pcs of each color, each comes with a double stud and a claw ring, in a plastic case, easy to store and easy to find for next use.Easy To Use: Pearl buttons come with double studs and claw rings, the buttons structure is easy to open and lock, convenient for wearing garments, easy to install and simple to use.High Quality: Pearl buttons with pearl-like finish and brass trim, washable, rust-free, durable, not easy to break, can be used for a long time.