Integral in any farm set. Can be used for screening, seating, dressing, broken up to cover ground etc. Can also be stacked, pinned together and rendered for cob effect construction
Hay is greenish, dried grass. Straw is what's left over once grain is harvested. One has plenty of nutrients, one doesn't. There in lies the difference. If you are FEEDING an animal, get hay. If you are mulching, making bedding, stuffing a scarecrow, get straw.
Approximate size - 90 cm long x 60 cm wide x 35 cm tall.
Cost per bale.