This method of fermenting is really simple and makes for delicious food. The health benefits that you can get from lacto-fermentation also outweigh the benefits for food that hasn't been fermented, so it does way more than just preserve!
Slice the tops and bottoms off of the cucumbers and place into a jar on a scale (be sure to weigh the cucumbers and not the jar)
Add water to cover the cucumbers, weighing as you do so
Pour the water into a bowl or cup and mix with approx. 18g salt or 2% of the weight of the cucumbers and water
Pour the brine back into the jar and top with a small weight to keep the cucumbers submerged. Seal the jar and leave at room temperature for a week, serve and enjoy