These loads are nice quality and represent excellent value for money. They fit very well into your HOP wagons 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, etc. It would be great if the grades were more mixed fine to intermediate and coarse. I bought these initially in a bulk to load up my 24-ton wagons, as I knew that they would sell out fast. It was a terrific way of getting them loaded without getting glue and little chips over the place. What more can one say other than they do on the packet. It shouldn't take long to fit and remove for the return trip to the pit. A useful product and with a little glue, a small piece of steel, glue underneath the load to aid removing them with a magnet.