The TRNR Power Grip Pro 100 LB is designed for those ready to push their limits. Built with a heavy-duty steel spring and removable silicone-sleeved handles, it delivers 100 LB (45.4 KG) of solid resistance for developing next-level strength and endurance. The premium silicone sleeves enhance grip control, prevent calluses, and allow custom resistance levels — remove them for a raw, high-intensity challenge or keep them on for comfort and sustained performance. Perfect for athletes, lifters, and climbers aiming to build serious grip power, forearm density, and precision control.