PowerBlock Elite Stage 1 Adjustable Dumbbell Set -$220.00 PowerBlock was an innovator in this category and has been making adjustable dumbbells since 1991. This means they have had over 25 years of production and refinement to create the ultimately adjustable dumbbells set, and they truly have. The PowerBlock Elite dumbbells are one of the highest-rated and best-selling sets of all time. This is one of the last adjustable dumbbells sets to still be made in the USA, and PowerBlock uses only premium-quality materials. Thanks to their smart and economical design, the PowerBlocks are extremely tough and can withstand all sorts of regular gym abuse. • Stage 1 has a weight range of 5-50 lbs per hand and increments- 2.5 (adder weight), 5, 7.5, 10,15, 17.5, 20 25, 27.5, 30, 35, 37.5, 40, 45, 47.5, 50 pounds per hand • Is expandable later to 70 and again to 90 pounds per hand. • Made in USA • Replaces 16 pairs of dumbbells in the space of 1