Astro 3/8, 1/2, 3/4 & 1″ dr Socket Retaining clip & O-ring for impact wrenches This set comes with 1 each:1″dr Retaining Ring and 1″dr O-ring3/4″dr Retaining Ring and 3/4″dr O-ring1/2″dr Retaining Ring and 1/2″dr O-ring3/8″dr Retaining Ring and 3/8″dr O-ring Works with Cordless Electric and Air Impact wrenches and Ratchets with the hog ring style avil. Check out my other items! Be sure to add me to your favorites list! I do Combine shipping whenever possible! All you need to do is buy the items you want, then “Request the Total”. I will send you an invoice with combined shipping ASAP! I check my emails often! If you need a quote for combined shipping cost feel free to email me anytime! Attn: International Buyers,All Power Tools and chargers come with a Standard 120V US Electrical Plug. All posted US shipping rates ( including Free shipping when available) applies to the Continental 48 states ONLY!For shipping to Hawaii, Alaska and other islands please email for shipping quote. Thanks, Nate’s Tools and MoreWarning: This product can expose you to or may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.