All are usable. The largest 3 are marked 4. One of those has spikes on bottom. It is shown in several photos including the set one in the grass. I am guessing the smaller 2 are #3. That is not guaranteed. Sold as is as pictured. All except one has bailing wire tied to end of chains. I miss regular bales of hay! All that free bailing wire to fix your fence or car bumper! And those big round bales are no good. Horses and cattle can’t get a square meal out of them. �� Shipping is by UPS or FedEx and requires a physical ship to address in the mainland US.