These ESFUN S-hooks are excellent and exactly what I wanted / needed. I needed a strong hook with a thin diameter (about 3/16) so that they fit through the holes in these hanging mechanics socket mounting strips. The opening of the larger end needed to be correct to make it easy for me to remove and replace the strips. I wanted the the smaller opposite end these have so that they hang better on the baker's rack in my garage. They are easily supporting at least 20 pounds of weight with no sign of bending. The black finish seems durable and fits in properly with the rack. An all around win for me. Will be finding other uses for the rest of the package.I do find it odd that most measurements are in fractions of an inch, yet the diameter of the rod is decimal.Not sure where the negative comments are coming from, unless it was misdirected from another seller's hooks.