Material :alloy Color: Silver plated Size: Clasp Outer diameter: Approx. 25mm, Inner diameter: Approx.17mm High quality, Strong,  Firm and longlasting Used for key chains, Phone, small dog leashes, hanging crafts or decorations on handbag purse shoulder strap , beading projects, camping and more Package Includes:  6pcs Round Spring Snap Hooks Note: Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. Meanwhile, please be reminded that due to lighting effects, monitor's brightness / contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item.