These loads are nice quality and represent excellent value for money. They even fit very well into your PFA containers and make it a breeze of a job to add them. The loads on the top are presented as finely graded coloured chips of your chosen ore, black for coal, rustic red for iron ore, etc. It would be great if the grades were more mixed of fine to intermediate and coarse. I bought these initially in a bulk to load up my PFA wagons, as I knew that they would sell out fast. So, it was a terrific way of getting loaded without getting drunk and getting glue and little chips over the floor. What more can one say, they do what it says on the packet, to make your wagon containers look filled. It shouldn't take long to fit them and remove for the return trip to the mine without trying to force them. A useful product and with a little thought, glue a small piece of steel underneath the load to aid removing them with a magnet.