shipping costs rise the costs to ship relatively heavy dumbbells is expected to increase accordingly in a preferred method of manufacturing dumbbell 2 weight frames 20 would be manufactured and shipped as part of dumbbell 2 but without any commodity weights 32 being attached thereto the distributor retailer or purchaser of the product would receive dumbbell 2 in this u201c unweighted u201d form the distributor retailer or purchaser of the product would then purchase a sufficient number of commodity weights 32 locally wherever the distributor retailer or purchaser resides and would add such weights 32 to each weight frame 20 to complete dumbbell 2 in this regard dumbbell 2 would be shipped with enough clamping members 42 bolts 40 and nuts 43 to allow a sufficient number of commodity weights 32 to be clamped to all the different weight frames 20 to complete dumbbell 2 the net result of this preferred manufacturing method of this invention is a lower cost product in the hands of the end user the cost to purchase the product by the end user will be reduced by the costs that would have been incurred to manufacture or purchase custom weight plates as well as by the costs to ship all of the weights this cost reduction will more than offset the cost at the other end to complete dumbbell 2 by having to purchase a sufficient number of commodity weights 20 essentially at least the shipping costs that are usually associated with shipping the dumbbell should by and large be saved this is an advantage to the user of dumbbell 2 by lowering the cost to own dumbbell 2 in addition commodity weights 32 of different weights such as 1 25 pounds or 2 5 pounds typically.