PowerBlock USA ELITE EXP Stage 2, 50-70lb PAID ADD ON TO ADJUSTABLE DUMBBELLThe PowerBlock Elite USA EXP 50 70 lb, Stage 2 Expansion Kit The PowerBlock Elite USA EXP 50 70lb, Stage 2 expansion kit, is the perfect upgrade for users who want to take their strength training to the next level. It expands upon the PowerBlock Elite USA EXP Stage 1, 5 50 lb base kit, allowing you to seamlessly progress from lighter to heavier weights without the need for additional equipment. With its solid construction and easy to use design, this