Bowflex SelectTech 552

The Bowflex SelectTech 552 dumbbells are our favorite for their easy-to-use design and wide range of weight options that adjust in as little as 2.5-pound increments.
Pros and Cons
Pros
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Easy to use
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Adjust in 2.5-pound increments
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Smooth to re-rack
Cons
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Takes longer than some to adjust weight