Material: these hair clips made of good quality metal material without rust, smooth surface, very durable for a long time. | Size: each hair clip is approx. 6 cm/ 2.3 inches in length, 0.8 cm/ 0.3 inch in width and 1.3 cm/ 0.5 inch in height. | Design: each of the hair clip has tiny teeth design on the upper part of the clip which can greatly handle whatever thick or thin hair. The metal blade on bottom is thin but strong that will not hurt your hair. | Application: perfect for clipping hair foils up when applying hair color or separating and holding sections of your hair for blow-drying or curling. These rectangular hair clips are also suitable for many other hair pieces and craft projects. | Quantity: each package comes in 100 silver alligator teeth clips, which meets your big quantity needs. Works on all kinds of hair from straight, curly, thick or thin.