[4 SIZES CLASPS WITH TOOLS]: Platinum slide tube clasps in 4 sizes: 16mm / 20mm / 25mm / 35mm, each size 20pcs, 80pcs in all. Extender chains, Lobster claw clasps and other tools are also contained in this kit, plenty tools provided, without material shortage. [PACKAGE INCLUDED]: 80Pcs slide end clasps in 4 styles, 16mm / 20mm / 25mm / 35mm long, hole: 1x3mm, each style 20pcs; lobster claw clasps: 16x8mm, hole: 2mm, 30pcs; twist chains: 50x3.5mm, 30pcs; teardrop alloy charms: 7x2.5mm, hole: 1.5mm, 30pcs; iron jump rings: 6x0.7mm, 60pcs; brass earring hooks: 19mm, hole: 1.5mm, 20pcs; Box: 11x7x3cm, 1pc. [EASY TO MASTER]: Convenient to use with twist extender chains and lobster claw clasps provided, easily slide into and can be opened and closed without caton, easy to put on or take off, help you design your lovely jewelry. [HIGH QUALITY MATERIAL]: Slide on end clasps made of high-quality brass through advanced technology, durable and reusable, hard to get rusted, sustain long-term use. [MULTIPLE USE]: End Tubes for ending seed bead earrings, multi-strand and friendship bracelets, stackable necklaces, chokers, ball chain projects, and other DIY stitched designs.