Directions are printed on every bag, along with size and dimensions. Directions were very easy to follow. Used the large bag for an oversized blanket, and was able to still fit 2 regular blankets with it. The hand pump is functional, but using a vacuum is the only way to ensure the bag will be as compressed as possible. Using the hand pump leaves the storage bag more flexible than the vacuum, there are benefits of both compression methods. The zipper clips are good or those who may have mobility issues, otherwise pressing close with fingers work just as well. Reopening is easy, open the zipper and let the bag naturally decompress before pulling item out.