Walmart offers the Cap Barbell 40-lb. Cast Iron Dumbbell Set
, model no. RSWB-CS040T, for $24.99
. Opt for in-store pickup
to avoid the $4.97 shipping charge. That's tied with last month's mention, the best now by $12, and the lowest price we could find. It features four 6-lb. plates and four 2.5-lb. plates.