YZLSPORTS 10LB Finger Strengthener is designed with finger and hand contours for easy use, featuring an ergonomic base that provides optimal comfort and stability during exercise. Each spring-loaded finger pressure is pre-adjusted to ensure accuracy
Individually Exercise Each Finger Trainer or the Entire Arm Strengthener. Separately Isolate and Train the Strength, Flexibility, and Endurance of Each Finger. Develop an Outstanding Hand Trainer, Wrist, and Forearm Strength