They use chain hoists to lift heavy engine blocks, tires, car/truck batteries as well heavy car parts. This can be the easiest concept in strength training yet so many miss this. There are light and there are the heavy-duty. https://Ophiuchus.wiki/alibowlin5616/8606lifting-sling-chain/wiki/Rabbit-Handling-Tips---It-Always-Be-Done-Correctly-For-Your-Rabbit%27s-Safety