Convenient packaging because it is resealable, which is convenient for a 5kg pack that will last long. The Epsom salt works very well for muscle pain, such as aching for example. Dilute in your bath for stress, muscle aches, etc. for immediate relief. Repeat several times if necessary, the results are fast but short baths. For fun, I mix in a pot with the dye and vanilla, it looks like a perfume the bath salts unless they are cheaper, more natural and very good for the muscles!