Value Pack: You will receive 320 pieces open jump rings with 4 different size, each size has 80 pieces. Sufficient quantity to meet your daily DIY jewelry and craft needs. You could also share them with your family and friends. 4 Size: There is 4 diferent size in this set, size 1: 0.16x0.03 inch, Inner diameter: 0.09 inch; size 2: 0.24x0.03 inch, Inner diameter: 0.18 inch; size 3: 0.28x0.03 inch, Inner diameter: 0.23 inch; size 4: 0.31x0.03 inch, Inner diameter: 0.26 inch. Excellent Material: These rings are made of high quality 304 Stainless Steel, which is sturdy and reliable, smooth on surface, not easy to fade easily, hard to break or deform, lightweight, which is perfect for any jewelry art projects. Easy to Use: Real gold plated stainless steel jump rings are used as a connector where a single ring is desired. They are all well oragnized in a plastic boCompartments of storage box separate open jump rings and allow you to find the right one easily. Wide Application: These durable jump rings are very suitable for DIY art projects, such as necklaces, bracelets, earrings, key chains, anklet chains, hairpin, headwear pendants, jewellery accessories, and so on.