DescriptionOrigin : Mainland ChinaDIY Supplies : MetalworkingMaterial : SteelCertification : NONEStyle : SpiralLoad Type : ExtensionMaterial : SteelUsage : FURNITUREType : tension spring 7mm-14mmDescription Sizes : Wire diameter x Outer diameter x Length Wire Diameter : 1.4 mm Outer diameter : 8-14mm Length : 30 mm - 300 mm Material : Spring Steel Uses : Hand tools, home care equipment, shock absorption, engine valve springs.Note:1. Due to manual measurement, please allow an error of 0.1-0.3mm.2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image.If you have any questions about this product, please feel free to contact us. We will reply to you as soon as possible.Thank you very much for your support. Happy shopping Satisfaction GuaranteeOur first priority is to provede you with an easy,pleasant,and anxiety-free shopping experiencewe try our best to give a clear,candid,and complete description of our products and their conditionswe are always ready to help if you have questions or encounter a problem ,but if for any reason you arenot satisfied with a product or service please do not hesitate to contact usIt is very impottant to us that you have a positive & 5 star transaction with us.please contact us promptly before you leave us negative feedback.we weill try our best to resolve you problem.If I am not online,please leave your message,we will reply you once we log in.we reply every message except we have not get your message.Refundwe accept refund if product not as decribedIf the goods are damaged.Please provide photos.We can give you a full refund.Or send you a new itemIf the product is lost. Or the wrong number. If we make a mistake. We accept partial refund compensationServicesAfter receiving the payment. We will send the goods within 12 hours