Designed for a versatile workout, the Elite EXP Stage 3 Kit pairs with the Elite EXP adjustable dumbbells. This kit allows you to expand the Elite EXP 70 lb Set from 70 lbs. to 90 lbs. per hand. PRODUCT FEATURES: Sold as a pair, ships in one box Elite EXP Stage 3 Kit expands Elite EXP 70 lb set from 70 lbs to 90 lbs per hand Elite EXP Stage 2 required prior to Stage 3 Expansion Adds an additional 6 increments to Elite EXP Set (70, 75, 77.5, 80, 85, 87.5 and 90 lbs) Set expanded to 90 lbs now replaces 28 pairs of dumbbells Only compatible with the PowerBlock Elite 2020 EXP Adjustable Dumbbell 5 Year Limited Warranty