Bowflex SelectTech 552 Dumbbells for $329.15 shipped after combining code FITNESS15 and code LOYALTY10. Here is a screenshot for your reference. They feature a weight range of 5 to 52.5 lbs for each dumbbell with 30+ exercises. At the time of this post, 90 out of 100 user reviews have given it 4/5 and 5/5 ratings on Amazon. Most places have them for about $399.