Design: They look like a bead, used to finish stringing materials like jewelry wire. So it gives the design a more finished look. Great for covering up crimping beads, cord knots or wire ends for bracelet, necklace, earrings, or anklet jewelry making and crafting. 8 Sizes: About 3-10mm inner diameter,8-14.5mm long, 4-11mm wide, 1.5-3mm hole, each size you will get 4pcs, totally 32pcs, with one clear plastic box. It fits perfectly around the ends of wire, rope. MaterialMade from 201 stainless steel metal, strong and durable, tarnish-resistant, easy to work with and install, corrosion and tarnishing, which requires minimal maintenance. Easy to Use: Simply use glue to insert the cord to the end cap and they will hold your string in place for attaching with jump rings or other connectors. Wide Application: Perfect for glue in jewelry designs, you can use them with leather, suede, tassel, lace, hemp, or rattail satin cord to create necklaces, bracelets, earrings, tassels and Kumihimo jewelry.