• Maximize your strength with the Sport EXP Stage 3 Expansion Kit. This kit increases each dumbbell’s weight capacity to 90 lbs, perfect for those looking to challenge themselves with heavier resistance. • Increased Weight Capacity: The 10-pound weights increase dumbbell’s weight from 70 lbs to 90 lbs, ideal for more advanced strength training. • Quick Adjustments: As with all PowerBlock systems, the magnetic selector pin makes adjusting the weight fast and easy. • Space-Saving Solution: This expansion allows you to replace multiple dumbbell sets, saving space in your home gym. • Durable Build: Constructed with commercial-grade materials, the Stage 3 kit is designed to endure tough workouts. • Compatible with the PowerBlock Sport EXP dumbbells.