This stand up pouch is for packing 2.5kg pet food, which is with handle and spout. It can be carried easily and when you use it, the pet food can be poured out easily because of the large spout. The spout size is 33mm.
For 2.5kg pet food bag, another choice is flat bottom bag with zipper. The suggest dimension is 230x410x110mm.
It can stand well too and you can take the pet food out as you want.