I can't help but think the real thing is better. This one has very low mobility and is sometimes hard to spot.

To be honest, I don't even remember why I ordered these, but I only have 10 pounders. They do the job and are sized with the rest of my bumpers so work just fine.

Spotted at a used sporting goods store so picked up for the family. Light and easy to more or adjust. Good for step aerobics.

Was purchased second hand with a pile of other items, otherwise this is a little set up intensive. Thankfully I have spare plates to keep it in, but otherwise it would be more burdensome.

Cheap weight. I've had four of these for a couple decades and it didn't take long for them to start chipping where they contact the barbell.

My Hercules hold DIY setup involves backing my truck onto a small ramp while adding an attachment to its hitch and to a static point in the gym (loaded weight tree). Great value for the cost, but it takes someone helping to safely operate.

Much better option than the screw on/screw off standard adjustable dumbbells I have for quick and easy adjustments.

This set up is a pain to put together and slightly hazardous but it gets the job done.