This is a bulk bag of at least 90cm cubed, full of dry softwood. Softwood provides a very good burn and also provides lots of heat discharge from burning. A bulk bag contains approximately 130-150 logs. Its cheaper than hardwood as softwood is in plentiful supply!
The bulk bag will often be delivered using a delivery lorry and a crane to offload to a point as close to your property as is possible at the time of delivery.