Item Type: Toggle ClaspsMaterial: AlloyAperture: Approx. 2mm / 0.1in (Manual measurement, there may be slight errors)Purpose: DIY jewelry accessories1Made of high?quality alloy material, these toggle clasps are stainless, durable with long service life. 2These supplies are suitable for DIY hand?made jewelry, bracelets and necklaces. 3Can be used for new jewelry or replacement, and are excellent accessories for DIY jewelry. 4The product is an ideal for bracelet making kits, earrings, necklaces, pendants, arts and crafts. 5These supplies are easy to use and operate. Just put the bar into the toggle and make the bar horizontal, it can be closely buckled.100 SetsToggleClasps