Specification Brand : EISCO BulletPoint1 : Maximum elongation 30cm, compressed length is 6cm BulletPoint2 : Diameter is 3.5cm BulletPoint3 : Spring constant is approximately 42.5 Newtons per meter BulletPoint4 : Highly durable spring great for any physics lab BulletPoint5 : Half loops on top and bottom of spring make for easy connection to any apparatus CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 0849230036959 ExternallyAssignedProductIdentifier2 : 849230036959 ItemName : EISCO Physics Spring - for Hooke's Law and Oscillation Experiments, 3.5cm Diameter ItemPackageDimensions_Height : 12 centimeters ItemPackageDimensions_Length : 3.2 centimeters ItemPackageDimensions_Width : 5.5 centimeters ItemTypeKeyword : industrial-spring-scales Manufacturer : Eisco NumberOfItems : 1 PartNumber : PH0115F ProductDescription : A great spring for measuring Hooke's law, studying oscillation, or building a contraption of your own (such as a Rube Goldberg device). The spring is 3.5cm in diameter, 6cm in length at its relaxed state, and 30cm at full stretched state (which will return to normal form) ProductSiteLaunchDate : 2017-10-17T11:52:56.630Z SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable