Detailed size: Brass wire end measures 8x2.8mm, hole: 1.5mm, inner diameter 2mm; Lobster claw clasp: 12x6mm, hole: 1.2mm; Open jump ring: 6x1mm, inner diameter: 4mm. If you want to easily put it into the end cap, it is recommended to use a rope or chain thinner than 2mm. Sticking wire tips: The cord cover is simple to operate. Insert a bead of glue into the tip and then press the wire into the tip. If you want to easily insert the cord into the tip of the cable, it is recommended to use a wire end that is slightly larger than the wire diameter. Highquality materials: The rope end and jump ring are made of brass, and the lobster clasp is made of alloy, which is sturdy and not easy to wear or deform. Exquisite workmanship, high gloss. The color is solid and not easy to fade. Durable and can be used for a long time. Jewelry Making Kit: You will receive a set of jewelry making accessories in 6 different colors, including 120 end cap tips, 180 lobster claw clasps and 240 pieces of open jump rings, totaling 540 pieces of jewelry accessories to meet your jewelry making needs. Wide Application: The jewelry making kit is widely used to make leather work, tassel pendants, lanyards, key chains, chokers, earrings and other handicrafts. Also suitable for leather, organza, tassel, ribbon, suede lace, silk and satin rope necklaces.