The DFX Powerball Iron Series is a high-performance gyroscopic forearm muscle builder engineered for athletes and advanced users who demand serious results in grip strength, wrist endurance, and forearm development.

Features and Specifications:

High-Performance Resistance: Spins up to 16,000 RPM and delivers 50-60 lbs of progressive gyroscopic resistance that increases with speed
Targeted Muscle Development: Builds grip strength, wrist endurance, and forearm power for advanced users and serious athletes
Ultra-Smooth Motion: Provides continuous, fluid resistance for consistent muscle engagement and strength gains
Durable, Stylish Design: Precision-crafted with a polished metal finish and compact form for portability and visual appeal
Ready to Use: Includes a protective carrying case and starter string for quick activation right out of the box
NOTE: this product is not compatible with the Gyroscope Speed Meter

Made In: China

Material Composition: Plastic, metal