how to repair zipper slider

{"cid":"91203004","title":"DIY Craft Silver Metal Zipper Sliders Replacement Antioxidant Rust Resistance Antitear","imgUrl":"https:\/\/img.ismap.com\/nimg\/d4\/b4\/21c7a9553dc0e5b08c700e2e36c8-200x200-1.jpg","attrs":{"Price":"Negotiated price","Brand Name":"Alalamu","Model Number":"Alalamu","Minimum Order Quantity":"1 PCS","Delivery Time":"7-15 days","Certification":"ISO","Place of Origin":"china","Payment Terms":"L\/C T\/T","Supply Ability":"10000PCS\/Month","Packaging Details":"pp bags with carton","Item":"Zipper Repair","Application":"Bags, Jackets Backpacks, DIY Craft Purse","Color":"Light silver\/Silver\/Customized","Type":"Metal Zipper Sliders","Material":"Metal","Feature":"Small volume and light weight"}}