Fashion stacking ring is made from s925 sterling silver. Exquisite craftemanship and high polished electroplating. Lead-free, nickle-free, anti-allergy, lightweight, and comfortable to wear. Jigsaw Puzzle Finger band size is about 7. Can be adjusted slightly (5-8). Fully adjustable ring will fit almost every size finger. This product is not suitable for children 12 years and under to wear.