Adds weight to the selectorized stack on a Legend Fitness machine. Priced by the amount of weight added, at a flat rate per pound, so the same upgrade costs the same across every Legend model that offers it. This is an add-on. It is built into the machine it is ordered with and ships on the same freight shipment. It cannot be ordered on its own, and the upgrades available depend on the machine — most models step up in 50 lb increments from their standard stack, and each model has its own ceiling. Factory-installed on the machine at build time, not a field retrofit Uses the same plate size as the machine's standard stack Ships with the machine on one freight shipment