10 hooks, 5 pairs of hallmarked 925 sterling silver hooks For all your dangling earring creations. Ideal for your DIY silver jewelry creations, fine earrings. Very easy to assemble, gently open the ring at the base with a small clip on the side, attach your rings and supports, close, you're done! Nickel-free, lead-free, cadmium-free in accordance with European regulations. To make your DIY primers and jewelry last: - Handle your jewelry gently. - Remove your jewelry for sport and at night before bedtime. - Store it away from light, separately from all your other jewelry, in a bag or a small pouch.