Using safety chains when you tow is smart, safe and required by law. Without safety chains attached, there is a serious risk of danger if your trailer becomes uncoupled from your trailer hitch. This basic safety chain is made from high-quality steel and is grade 30 certified. It is equipped with two sturdy 3/8" S-hooks for reliable coupling to your vehicle and features a minimum break force of 2, 000 lbs. Remember, each safety chain assembly connecting your trailer to your vehicle must meet or exceed the gross trailer weight. | Curt Safety Chain, 48