How to use a sledge mover effectively?

Heavy-duty commercial quality sled. Measures 25 (W) x 44(l) x 42(h with poles inserted) and 56 kg 18” of loadable length on center weight post, fits 2” Olympic plates. (2) upright posts can be used for both high/low stances, and eyelets for attaching a rope or harness for dragging. Can be used on grass, turf, concrete, or asphalt. Works as a push, pull, or drag sled with the ability to offer much more! Completely collapsible for flat packaging. Power running training speed sled for athletic exercise and speed improvement. Add the amount of weight that best fits your training needs weights not included. Burn fat and calories faster by adding resistance to running drills. Ideal for both men and women.