I looked at other adjustable dumbbells from Bowflex and PowerBlock, but the plastic parts they include reportedly make them fragile, which is a characteristic I'd like to avoid in free weight equipment. Ironmaster equipment looks great, but it's much more expensive and, it appears it's only available on the used market at even higher prices, or from Ironmaster via lottery.These dumbbells (I ordered two) came on time, double-packed and plastic-wrapped in two 52.5lb boxes, and with all of the parts and pieces included and intact. They look very solidly constructed. The retention collars are easy to spin off and on. They can loosen during use, but so far a simple check and twist before each set looks like it will keep them safe. Some of the plates had rough spots, but the finish looks tough and appears to adhere well to the underlying iron, and I'm unconcerned with their aesthetics.The knurled handles are consistent with equipment I've used in most gyms, and a pair of gloves would address any discomfort that some folks may experience.I've only used these a few times so far, but they're exactly what I wanted, they look like they'll last for years, they're reasonably priced, and I don't have to worry that a broken piece of plastic will leave them unusable or make them unsafe.
Rating: [5 of 5 Stars!]