I bought the 5 lb box of shredded foam fill to replace the stuffing in my dog bed. His bed is large, at 40"x29", and the 5lb box was enough to fill it about 5 inches high, which is perfect. At first, when it came in the mail I thought that there was no way it was going to be enough stuffing, and I almost got right back online to order another box. I am so glad I didn't! This stuff is SUPER compacted when you first open it. It is so compacted, that it was actually a pain in the butt to fluff back up. The foam comes in a big ball- about the size of 2 basket balls, and you have to like rip and tear chunks out of the block and crumble it to fluff it up again. This was annoying because it was sort of messy and the foam has this odd chemical smell to it that I found a bit unpleasant. However, if you put the entire ball of foam INTO the dog bed, and with your hands inside the cover, tear it apart, this helps with the mess. If you try to tear it off a handful at a time, and place each handful in the bed, you are going to have an incredible mess on your hands. Yes, this product is staticy, yes it has some "crusty" bits, and yes... at first it smells a little weird. HOWEVER, once you get past this minor road bumps, you will have an amazing, SUPPORTIVE, and FLUFFY dog bed for only like $20!! New dog beds, for a large dog, are between $100-$200 for "quality" beds. This stuff is SO MUCH BETTER than any dog bed filling i've ever paid more for! My greyhound is pretty boney and really needs a supportive bed that won't get lumpy/flat spots in it, and this stuff is Exactly what I was looking for. I am super glad that I bought it, and if his bed needs to be filled again I will not hesitate to buy it again, the work was totally worth the pay off. I really hope they keep selling this product for years to come.