pre banding class ii spacer springs

{"cid":"91222511","title":"Long Shelf Life Durable Spacer Springs for Dental Clinics Pre-Banding Procedures in Class II Instrument Classification","imgUrl":"https:\/\/img.chinax.com\/nimg\/42\/59\/3dc5ae0de0f5be0cce19c6df39ea-200x200-1.jpg","attrs":{"Price":"CN\u00a521.74\/packs 1-49 packs","Brand Name":"ALS","Model Number":"Separator Springs","Place of Origin":"Zhejiang, China","Power Source":"Manual","Warranty":"2 years","After-sale Service":"Free spare parts","Material":"metal, Medical-grade stainless steel, Medical-grade stainless steel","Shelf Life":"2 years","Quality Certification":"ce","Instrument classification":"Class II","Safety standard":"MFDS","Product name":"Separator Springs","Available sizes":"Universal","Packaging":"10 pieces per pack","Colors":"Silver","Features":"Hypoallergenic, Nickel-free (optional)"}}