Plaintiff Peter Cohen bought PowerBlock’s Urethane Series Dumbbells, advertised as the “World’s Best Dumbbell,” at a MSRP price of $1,396. However, the complaint alleges that in just four years of fairly light use, some of the weights began to crack and break. Since the weights came with a lifetime warranty, the complaint says, Cohen took pictures and contacted PowerBlock. PowerBlock did send Cohen replacement weights, the complaint claims, but two years later, these too failed in the same manner as the other ones. Since Cohen often lifts the weights over his head, and since some of them are as heavy as 90 pounds per side, the complaint said, he began to worry about the safety of the product. But PowerBlock would not permit him to exchange the defective weights for cheaper but more reliable weights, the complaint claims.