Review on Spring Clamps for Medium to Heavy-Duty Applications by Deshaun Fisher

Cheap and weak. Nothing you can buy at the hardware store. The feathers are much weaker. However, I was able to use them for light woodwork. I also bought 24 packs to compare and they turned out to be the exact same clips. This is the exact same product as shown here: https://smile.amazon.com/gp/product/B01188ZBRY But the 24 pack from the link above is significantly cheaper per clip. Get these instead if you really need these clips because they are exactly the same.