Earring making kit contains 200 earring hooks, 200 eye pins, 200 head pins, 300 4mm open jump rings, 300 6mm open jump rings, 100 4mm earring posts, 100 6mm earring posts, 400 rubber earring backs, 1 tweezer, 1 jump ring opener. Earring hooks and findings are made of silver-plated copper, earring posts are made of stainless steel, earring backs are made of clear silicone. Includes 20 kinds of universal findings to fit different needs for making dangling earrings, studs or various styles. All supplies are placed independently in a 24 grids storage container to keep small parts tidy and organized. Tweezers help pick up small findings and jump ring opener helps open and close jump rings easily.