Specification Brand : GSC International BulletPoint : The unit includes a sturdy base, testing spring, metal scale, an indicator needle, and a complete set of hooked weights BulletPoint1 : Package Dimensions: 12.49 L x 5.64 H x 9.51 W (inches) BulletPoint2 : Package Weight : 2.45 pounds BulletPoint3 : Country of Origin : United States BulletPoint4 : Part Number: 8132W ItemDisplayWeight : 5 pounds ItemName : GSC International 4-80810 Hook's Law Demonstration ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-weights Manufacturer : Thomas Scientific Material : Stainless Steel ModelNumber : 4-80810 NumberOfItems : 1 PartNumber : 4-80810 ProductDescription : WeightWeight ProductSiteLaunchDate : 2015-03-07T08:56:29.039Z StreetDate : 2017-03-14T00:00:01Z TargetAudienceKeyword : 1201C16 UnitCount : 1