Reps listed for each exercise are top of range. Minimum is two less. If reps specify 10 then range should be 8 to 10 reps and when you can do 10 all sets then increase weight.
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From http://www.aworkoutroutine.com/the-muscle-building-workout-routine/
We love these adjustable dumbbells from Rep Fitness. They take up very little space and are also very durable compared to other adjustable dumbbells on the market.