Hook Ring Toggle: S-Hook Clasps are about 12x6x1mm, 60pcs; Round Rings are about 20 Gauge, 6x0.8mm, 120pcs; Quantity: 60 sets totally, suitable size and unique shape will bring more beauty of elegance and design for your jewelry. Drop Toggle Clasps: Made of 304 Stainless Steel, long-wearing and easy to preserve, with polished and professional finishing touch; Metal Color: Stainless Steel Color. Easy to Use: Just open the S-shaped buckle forcefully in the front and rear directions, put the ring into the S hook, it can be closely buckled. You can take jewelry pliers and slightly opened the hook so that it slides on and off the ring a bit easier. Don't do it too much or will not stay connected. DIY Craft: This toggle has a simple design to go with an piece of jewelry. It is the perfect size! Its not too big make your design unbalanced but still easy to for your hands to work. Wide Application: These 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.