Description: 100 Pairs earring stopper and back: package includes 100 pieces earring pin studs, 100 pieces flat earring backs, a large amount earring posts and earring studs can meet your requirement The blank earring pins are made of stainless steel, corrosion and stain resistant, durable and sturdy, lightweight and easy to use. Turn your favorite charms or beads into earrings easily with these solid earring earstud, you will be more beautiful and confident! Every findings has its unique design and style and theme, and the earrings made with them are unique and represent your own style. Create beautiful earrings: with flat round pad, the pin stud posts can be applied to DIY beautiful and elegant earrings with flatback rhinestone and crystal by using hot liquid glue Perfect findings for making personalized jewelry,great DIY accessories for home jewelry making. Specification: Material: Iron Size: Approx. 12 x 4 mm / 0.47 x 0.16 inch Back Size: Approx. 5 x 4 mm / 0.20 x 0.16 inch Flat Dish Size: Approx.4 mm / 0.16 inch Package Includes: 100 Pairs Earring Posts and Backs(4 Pack) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.