A safety clasp is a small device that helps fasten things together securely so they don't come apart easily. It's often used on jewelry or bags to keep them from accidentally opening. Full definition
Crafted from 100 % FDA food grade silicone and American maple hardwood, this beautiful and functional necklace is non-toxic, eco-friendly and features a breakaway safety clasp for quick release. (thetot.com)
She also loves tugging on my long hair, so the necklace does double duty: she can chew on it or keep her hands busy and out of mama's hair (the breakaway safety clasp ensures that if she tugs a little too hard on the necklace it will safely come off). (blog.guguguru.com)
Pin closure with safety clasp fastening. (polyvore.com)