Place one cucumber between two chopsticks that you don’t mind nicking up (like takeout chopsticks). Make thin diagonal slices on the top. Then flip the cucumber over and do the same on the other side. Then cut cucumber into halves. Repeat for remaining cucumbers. Transfer to a large bowl.
Sprinkle salt over cucumbers and gently massage into them. Let cucumbers soak in salt for 5 minutes (no more than 10 minutes or they will break down). Rinse with cold water at least 3-4 times to completely remove the salt. Strain and set aside.