Agency 6 Shackle Block (Double Side Hole/Single Top Hole): Great tool to have in your recovery bag for when the fun stops. We've added a d-ring shackle and hitch pin so you can gain piece of mind on your upcoming adventure. MADE IN THE USA - Agency 6 shackle blocks are machined in house with US Certified 6061 T6 aluminum. This gives us ultimate control over fit,finish, and QUALITY! Lightweight design with a working load limit of 13,000 lbs* (ultimate failure is over 55,000 lbs) capable of standard recovery ops in off road and other situations. (Safer than attaching tow strap to a receiver ball) Fits all standard 2 inch receivers and 3/4 screw pin shackle rings. ULTIMATE FLEXIBILITY - Shackle Block includes 2 pin mounting points for vertical block configuration and 1 pin mount hole for horizontal block configuration. DURABLE - Blue Powder coating will not rust or fade. LIFETIME WARRANTY - We stand behind our parts 100%. *Do not exceed the lowest Working Load Limit (WLL) of any component (ex: vehicle, hitch receiver, shackle, etc)