Spring Opening design opens with ease and when closed is secure,also work great for key rings Material: Zinc Alloy QUANTITY: 10 pieces More metal craft accessories for your creations, please visit our Loosco storefront on Amazon! WARRANTY: For any reason you're not completely satisfied. Please contact us, if you have any problem with installation or product quality, we will be happy to solve your problem. Loosco 10PCS Metal O Ring for O Ring Spring Opening Snap Trigger Clip Buckle Charm Purse Making