I only use one of these as a bar jack, if you’re loading 2 or more 45lb plates on each side, this works as a small ramp for easing your plates in. Place it near the first 45lb plate on either side, slide the plate on it, then load/unload as many other plates as you wish. Then put it away. It’s not supposed to stay under the bar during your lift. It just a replacement for a deadlift jack, or of course, you could use them as squat wedge as advertised. By making loading and unloading plates easier, you save your energy for the lift. I used to use small 2.5lb plates to do this trick, but this is much more efficient. Plus it ads the coolness factor. You only need one though. So you can give the extra one included to your gym-mate.
