200pcs x Ring hoop: about 0.79 inch(20mm) in diameter, 0.04 inch(1mm) thick; 1pc x Box: about 10.8x7.4x1.8cm. 1BOX 200PCS LINKING RINGS: 200pcs x Ring hoop: about 0.79 inch(20mm) in diameter, 0.04 inch(1mm) thick; 1pc x Box: about 10.8x7.4x1.8cm. BRASS MATERIAL: made of brass, earrings beading hoop are designed with classical gold color and ring shape, perfectly fit for multiple jewelry styles. Sturdy enough to keep the shape,it is not easily deformed. you could make your favourite DIY. EASY TO WORK: Just open the opening of the earrings to be assembled and put the round linking rings in. Round frames pendants can be matched with various small accessories. Make different styles of earrings. DIY CRAFTS: Round earring hoop are very easy to make various crafts. They can be used for pendants, earrings, clothing decorations or other ornaments. They are very suitable for making pendant necklaces, bracelets, earrings, scrapbook items, key chains, key rings, sweater chains or other pendants. UNIQUE GIFT: You can use these round earrings and small ornaments to design a new earring necklace, bracelet, key chain, sweater chain or other pendants. Use this unique ornament as a Christmas, Mother's Day, Anniversary, and Birthday gift. For your family and friends.