5 SIZES--Contains 5 sizes cord ends, 6/7/8/9/10mm inner diameter, 11-15mm long, 2.5-3.5mm hole.Each size 10pcs, 50pcs 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. 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. 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.