These were awesome. I didn’t know what to expect. They are not going to fill 100%, but they fill enough (95%ish) and the size of the opening is adequate. We used these while staying at a bed and breakfast and these helped us to keep us on track with our workouts. We would purchase again.
I bought these because of my arthritis and osteoporosis. My grip is not as secure as it used to be and I've been afraid that my usual 25 lb. handweights might drop on my foot. These are soft and yet still 25 lbs when full. I weighed it. I snipped the middle circles to make them easier to hold by hand. I do not need the bar that connects them. I also bought a pair for my father to hold and lift in the hospital.
These are good quality. I've drained them for moving twice. They're basically made like a water toy using vinyl and the same fill plug. But they're sturdy and can be refilled and reused with reasonable care. They're versatile; you can put up to four "doughnuts" on a bar when using the included extender pieces. I'm pleased with the investment.
these plates come in a set of 8. effortless to refill water, tho may require some time. i let my teeth flosser do the water filling like a dumpling. might consider it a trip essentials to bring along with you!