Silver Plated Magnetic Clasps with Lobster Claw. Clasp size: 7mm. Package includes 6 sets. Fun and simple to attach magnetic clasps are strong and stylish. A great clasp option for those who struggle with opening and closing other types of clasps. Actual Photo. Made in China. Perfect for those who find it difficult to clasp together necklaces and bracelets quickly and securely with ease.