Comprehensive Kit Includes: 3/8 inch impact wrench retainer rings and O-rings, along with a specialized anvil installation ensuring you have everything needed for setup and maintenance of your tool. Universal Compatibility: Designed to fit any standard 3/8 inch Milwaukee type impact wrench, providing a reliable and secure fit for both electric and pneumatic models. Optimal Material and Design: Crafted from rubber components, the retainer rings and O-rings are built to withstand rigorous use in professional or home environments, ensuring longevity and performance. Easy Installation Process: The kit includes an anvil installation tool that simplifies assembly. Place the retaining ring into the tool's recess, insert the anvil at a 45° angle, then straighten to secure the components effectively. Versatile Use: Ideal for both electric and pneumatic 3/8 inch square drive wrenches, this kit ensures a proper fit and function for a wide range of applications, making it a valuable addition to any mechanical or automotive toolkit. Color: Black Material: Rubber Package Contents: 20 x O-rings and retaining rings, 1 x installation tool. Only the items listed are included; other products are not included. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3 cm.