Walmart offers the Gold's Gym 40-lb. Vinyl Cement Dumbbell Weight Set for $18.99. Choose in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by $10, although we saw it for $4 less in our October mention. It comes with four 7.5-lb. plates and four 2.5-lb. plates.
These everyday items pose a health risk — or simply become ineffective — when kept past their prime.