Magnetic

Magnetic jewelry clasps are easy to fasten and unfasten. These are great options for one-handed operation or arthritic hands. Magnets are strong but you should always test these clasps on finished products to make sure the magnets will stay securely connected. There is a limit to the weight they can bear if you are doing elaborate beading, for example. Great for finishing large sterling silver chains. 

WARNING: Contains small magnets. Swallowed or inhaled magnets can attract through and squeeze intestines or other body tissue, causing serious injury or death. Seek immediate medical attention if swallowed or inhaled. Magnetic fields can affect the function of pacemakers or other implanted electronic medical devices.