💥 Spin Your Way to Strength! Rugged, break-resistant structure for double the lifespan. Small design, big resistance for intense workouts. Pull-string operation for instant engagement. Feel the burn in just a minute of spinning! No batteries needed—perfect for your lunch break! 15,000+ RPM speed 26.8 lb-in torque Military-grade durability The NSDPower Essential Spinner Gyro Hand Grip Strengthener is a compact, high-performance exerciser designed to enhance wrist and hand strength. With a spinning capability of over 15,000 RPM and a torque of 26.8 lb-in, it offers an intense workout experience. Made from military-grade materials, this device is built to withstand rigorous use while being easy to operate without batteries. Perfect for busy professionals looking to fit in a quick strength session anytime, anywhere.