Information for sizes: the open bead tips knot covers is about 0.16 x 0.27 inch/ 4 x 7 mm, jump ring connector measures approx. 0.03 x 0.16 inch/ 0.7 x 4 mm, and each of our lobster claw clasps is about 0.23 x 0.47 inch/ 6 x 12 mm; Note: Due to manual measurement, please allow slight size error. Sturdy material: these jewelry making accessories are made of quality alloy material with fine workmanship and sturdy construction, not easy to break, make your items not easy to fall off; The color shows metallic luster on the surface, make the overall look of handicrafts more beautiful. Wide range of usages: these jewelry making accessories come with utility and decorative function, you can use them to complete various sorts of jewelry making projects, to get delicate bracelets, necklaces, earrings, key chains, chokers and more, to get a well-look appearance for your jewelry crafts. Easy to use: each of open bead tips knot cover is equipped with 2 rings, you only need to press them together with flat-nose pliers, the round bead tip can hide the knots or crimps to provide a sleek appearance, and then combine it with the open jump ring and lobster clasp, add the jewelry you want and finally get your own jewelry design. Sufficient quantity: package comes with 450 pieces jewelry making accessories in total, including 200 pieces open bead tips knot covers, 200 pieces jump ring connectors and 50 pieces lobster claw clasps, large quantity and 3 styles of jewelry making supplies are suitable for different applications, meet your multiple craft projects needs.Number of Pieces: 450. Brand: WILLBOND. Style: Round. Color: Gold. Material: Metal. Date First Available: July 27, 2021. Manufacturer: WILLBOND. Item Weight: 1.13 ounces. Best Sellers Rank: #22,482 in Arts, Crafts & Sewing. Customer Reviews: 4.4 out of 5 stars 438 ratings 4.4 out of 5 stars. : B09B9X88R3. Package Dimensions: 4 x 3 x 0.2 inches.