Beads measure 12mm. Earring parts include French hook closure, lever-back closure or fish-hook Metal parts are lead-free, nickel-free and cadmium-free. Alloy base with silver plating or imitation Rhodium plating featuring E-coat. Because each bead is 100% handmade, there may be slight variations in size and shape. No two are exactly alike, making each bead as unique as the person wearing it. Clean Viva Beads with hot water and laundry detergent. Scrub clean with a small tooth brush and dry with a soft cloth.