Item Name: Handmade Double Ear Tension Spring Tension Spring Extension Spring Hook Spring. Material: stainless steelInner diameter: 3.2mmOuter diameter: 4mmWire diameter: 0.4mmQuantity: 100pcsLength: 6.1mmNet weight: 30g100 brand new and high qualityPackage includes: 100*springNotes Due to manual measurement or shooting scenes, there may be some deviation or slight color difference. *Please make