5 SIZES--Contains 5 sizes cord ends, 4/5/6/7/8mm inner diameter, 6-10mm long, 0.5-1.5mm hole. Each size 20pcs, 10pcs in total, meet for your different sizes and jewelry making. 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. STEEL CLIMP ENDS-- made from stainless steel metal; Strong and durable; Tarnish-resistant; Easy to work with and install, corrosion and tarnishing, which requires minimal maintenance. 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. EASY TO WORK WITH--Simply use glue to insert the cord to the end cap and they will hold your string in place. Each cord end features with a 2mm top loop for attaching with jump rings or other connectors.