This delicate 925/10 silver-filled 9mm plain round toggle clasp is the perfect way to finish a professional look. The small bar and loop clasp has a simple design, with each portion displaying a brilliant silver sine. This component is made of 10% silver, compared to 925/20 silver-filled which is only made up of 5% silver. The silver is mechanically bonded to a brass core for a sturdy structure, allowing you to create incredible pieces that have that perfect professional look.