Specification Brand : GSC International Label : GSC International Manufacturer : GSC International PackageDimensions_Weight : 0.50 PackageDimensions : L:6.00 X W:4.00 X H:2.00 PartNumber : SPRING-HL ProductGroup : BISS Basic ProductTypeName : LAB_SUPPLY Publisher : GSC International Size : 1/2" height x 3/8" top x 9/32" bottom SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/51YBdOv-BsS._SL75_.jpg SmallImage_Width : 62 Studio : GSC International Title : GSC International Spring-HL Spiral Spring Set Weight : 0.5 WeightUnit : pounds