his weld-on safety chain retainer has a removable clevis pin for ease of chain replacement. Also if you want to prime and paint this to match your trailer, you can remove that so that way it doesn't get primed and painted along with the rest of the unit. This unit has a load limit of 25,000 pounds.The retainer is designed to work with a 3/8 inch chain. It's constructed from tough forged steel construction with a plain raw finish.