Has eight everyday useful tools. Small screwdriver / 2mm (perfect for eyeglass frames). Medium screwdriver / 3 mm. Large screwdriver / 5 mm. File (for fingernails, or scratching some matches). Tweezers (need to remove key). Thread cutter. Bottle opener. Nail cleaners. 8-in-1 multifunction tool key ring with bottle opener, screwdriver and more This key ring costs much less than a Swiss army knife and allows you to have eight practical tools to get you out of perilous everyday situations. Weighing only a few grams, this multifunction tool has the particularity of fitting around a key to better be forgotten. The multifunction tool key ring thus makes it possible to always have a bottle opener, a file, 3 screwdrivers (small, medium and large), a wire cutter, a nail cleaner and tweezers at your disposal. comes with a small 25mm carabiner.