Features: 1.100 percent brand new and high quality. 2.There is a 150, 190 and 250 general air hammer retaining spring which can cushion the working machine 3.Made of carbon steel material, durable to use. 4.It is easy and convenient to replace. 5.Small body and stable performance. Specification: Condition: 100 percent New Color: Black Material: Carbon Steel Number Of Wire Rings: 8 Turns Weight: Approx. 58g or 2.0oz Outer Diameter of the Spring Ring: Approx. 34.4mm or 1.4in Inner Diameter of Spring Coil: Approx. 28mm or 1.1in Wire Diameter: Approx. 3.18mm or 0.1in Package List: 1 x Air Hammer Retaining Spring 1100 percent brand new and high quality. 2There is a 150, 190 and 250 general air hammer retaining spring which can cushion the working machine 3Made of carbon steel material, durable to use. 4It is easy and convenient to replace. 5Small body and stable performance. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store