Bowflex SelectTech 552 Dumbbells

Fifteen pairs of dumbbells in the footprint of one. The SelectTech 552s adjust from 5 to 52.5 lbs with a simple dial mechanism that's survived millions of adjustments since the original design. They're not as sleek as newer competitors, but the dial system is faster and more reliable than any pin-lock alternative. For apartment dwellers, they're the difference between having a dumbbell collection and having no space to live.