Features: Experience high efficiency training with this strength training rod, suitable for arm and shoulder exercises. The flexible spring arm strength expander is designed with a builted in spring that ensures a firmly grip and prevents slipping during use. Featuring a nonslip hand gripper with a thickened, heavy duty spring, this tool is resistant to deformation and offer excellent rebounds. Designed with a soft, antislip, and sweat resistant handle that is both strong and long terms. With a fitness grip rod wrapped in soft rubber protections, it ensures safety and reliability, preventing any accidental bumps or injuries. Specifications: Component: Metal Length: about 43cm/16.93inch Package Includes: 1pair Spring Arm Strength Expander note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.