Review on CURT 81271 Snap Hook Trailer Safety Chain Hook Carabiner Clip: 7/16-Inch Diameter, 5,000 lbs - Secure Your Trailer with Ease! by Justin Dorsett

Whilst the functionality and rating is exactly what I needed I am very disappointed that Curt (a reputable company) did not stamp the rating on the hooks. This is a requirement for rigging equipment. A hook with no rating marked has a rating of 0# by default. You may be able to prove otherwise if you investigate, but I would prefer the rating to be on the product.