Common wisdom is that to maintain good fitness requires variety in your fitness regime. These dumbbells are certainly a change from the typical axle and wheel shape found in most gyms. At $180 there's also a financial incentive to do a few curls every now and then. They're only 2.2 lbs so you better be ready to do about 100 reps per set.
Source: productdose.comAdded: 16 June 2008