Preminum Material: The OT toggle clasps are made of 18K gold plated brass fine workmanship and smooth surface. Jump rings are make of high qualiry stainless steel. They are very shiny durable and sturdy safe to wear and comfortable to touch not easy to fade Package Include: You will receive 10sets toggle clasps 0.83 inch(21mm) long bar 0.73 inch(18.5mm) long 0.28 inch(7mm) wide 0.10 inch(2.5mm) thick hole 0.06 inch(1.5mm) jump ring 0.20x0.04 inch(5x1mm) inner diameter: 0.12 inch(3mm). Enough quantity can help you in many diy projects Convenient to Use: These toggle clasps have simple design to go with an piece of jewelry. Its not too big to make your design unbalanced. Just put the bar into the toggle and make the bar horizontal it can be closely buckled very easy to use and can add elegance to your jewelry Wide Application: These toggle clasps extenders are great for necklaces that close in the front and add a lovely embellishment. They are good for those who may have difficulty putting on a necklace with a traditional small lobster clasp also great to use for bracelets DIY Craft Gift: You can make jewelry of different style with these toggle connectors to express love to mom best friends daughter wife girlfriend. Great for making gift for mother's day valentines day christmas easter anniversary graduation ester