They're a perfect fit for what we need them for. I bought a horizontal bar without knowing that we have to buy Olympic weights. Bought some used weights with only 1 inch hole. We removed the end that holds the Olympic kettlebells. So the neck is back to 1 inch. Found this as a quick way to get the used weights working. They were very easy to use and did the job. This is only temporary until we can afford to find Olympic weights at a reasonable price. A very cheap solution.