The fastener is attached to both sides of the file folder so you can hang papers off of either side, and the "brights" colors are very nice and come in red, blue, yellow, and green in case you need to sort things by color.

(Some papers I merely push the metal fastener through, and others I quickly punch a hole with a single hole hand squeeze punch, since it's easy enough to eyeball the spacing...)

Great quality files and the top prong paper holders are great having on each side, plus they come this way

Despite getting the outer part of a folder wet, I am able to use it with no problem and it did not ruin the papers in the file.

A sturdier paper would have made this a 5-star product.

Perfect - decent paper, holes aligned perfectly, what more can you ask for.