[18K Gold Plated Stainless Steel]: Open jump rings are made of 18k gold plated stainless steel, smooth and elegant surface, gold sparkles, soft metallic luster, good ductility, no reaction to most acids, not easy to deform, suitable for long-term wear.
[900Pcs Rings In A Box]: 900Pcs open jump rings in 4 sizes, all packaged in a small box: 68x52x11mm, easy to not lose the pieces, can keep chains from dirty.
[4 Sizes]: Size 1: about 4x0.8mm, 20 gauge; Sizes 2: about 6x0.8mm; Sizes 3: about 20 gauge, 8x0.8mm, inner diameter: 6.4mm; Sizes 4: about 18 gauge, 10x1mm.
[Easy to Use]: Jewelry repair kit has a tweezers and jump rings tool opener, much easier to open and close jump rings. You can secure the ring with jump ring opener, hold your pliers in the other hand to twist the end and assemble away with ease.
[Best Gift]: Using rings to make some delicate handicrafts as presents to your family members and friends on Mother's Day, Summer, Easter, St. Patrick's Day, Birthdays, etc.