Walmart offers the Cap Barbell Vinyl-Coated Dumbbell
in a variety of weight options, with prices starting at $1
offers it in several weights for the same with free Prime shipping.) Choose in-store pickup
to avoid the $5.99 shipping charge. (Select weights also receive further discounts when you choose pickup.) That's tied with last week's mention and, excluding the below mention, that's the lowest price we could find by at least $3. It's made of solid cast iron with a water-resistant vinyl coating. It's available in most weights from 1 to 15 lbs.
Note: Alphaben via Amazon offers it in 6 lbs.
for $15.50 with free shipping.