Specification Brand : YWBL-WH BulletPoint1 : Made of carbon steel material, to use. BulletPoint2 : There is a 150, 190 and 250 general air hammer retaining spring which can cushion the working machine BulletPoint3 : Small body and stable performance. BulletPoint4 : Outer Diameter of the Spring Ring: Approx. 34.4mm / 1.4in; Inner Diameter of Spring Coil: Approx. 28mm / 1.1in; Wire Diameter: Approx. 3.18mm / 0.1in BulletPoint5 : It is easy and convenient to replace. Color : Black ExternallyAssignedProductIdentifier1 : 719233160725 ExternallyAssignedProductIdentifier2 : 0719233160725 ItemName : YWBL-WH Air Hammer Spring Retaining Quick Spring Replacement for 150 190 250 Pneumatic Hammer, Air Hammer Air Shovel ItemPackageDimensions_Height : 12 centimeters ItemPackageDimensions_Length : 4.4 centimeters ItemPackageDimensions_Width : 6.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : air-springs Manufacturer : YWBL-WH Material : Carbon steel PartNumber : YWBL-WH74ubezio28 ProductDescription : Specification: Condition: Brand New Color: Black Material: Carbon Steel Number Of Wire Rings: 8 Turns Weight: Approx. 58g / 2.0oz