Screw-in Locking Magnetic Jewelry Claspsp> High Quality Material: Leadcadmium free brass and nickel release free.p> Locking Holding: The built-in magnet has firmly holding strength to keep jewelry secured.p> Add On Length: The clasp converter connector adds an extra length to the jewelry.Safer Than Magnets Alonep> The magnetic clasps are drawn together easily when you bring them near to each other making it easier to put your jewelry on either from the front or the back.p> This magic magnetic clever clasp is a handy for those having long nails or suffering from arthritis. The magnetic lobster clasp have a screw on on the ends.p> Simple with security and it locks securely to keep your jewelry intact. Easy to use.Maintenance Instructionsp> Easy to damage when exposed to chemicals.p> The aroma of bathing the chlorine in swimming and the salt in the sea water will accelerate the fading or damage.p> Therefore all accessories should be removed before bathing or swimming.p> Especially in the hot summer the coating is easily eroded by long-term exposure to sweat so it is best to prepare multiple pieces for frequent replacement.p> High Quality Material: Lead&ampcadmium free brass and nickel release freeli> Firmly Holding: The built-in magnet has firmly holding strength to keep jewelry securedli> Add On Length: The clasp converter connector adds an extra length to the jewelry.li> Package Included: The pack includes 8pcs of magnetic clasps 4pcs goldtone and 4pcs silvertoneli> Size: Diameter 6mmsuitable for different types of necklacesli> ul> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin