Introducing our 1-piece finger rehabilitation assistant device-designed to support hand mobility, flexion, and strength recovery for post-injury, post-stroke, or occupational therapy needs. Available in S/M/L sizes (3cm/3.3cm/3.5cm width), it fits most finger sizes with a secure, comfortable design. The device features an automatic elastic return slot: when fingers bend, the elastic mechanism provides gentle resistance to train muscle strength, while the open design allows natural movement. Made of durable metal and soft materials, it's built for daily use-lightweight, portable, and easy to put on/take off. Ideal for improving finger mobility, reducing stiffness, and enhancing grip strength, it can be used for multi-finger training (simultaneous use on multiple fingers) or single-finger focus. Suitable for home, clinic, or on-the-go training, it supports consistent rehabilitation routines without complicated setup. Package includes 1 finger rehabilitation device (no additional accessories). Whether you're recovering from an injury, managing arthritis, or enhancing hand function, this tool combines practicality with durability to support your hand recovery journey-reliable, effective, and tailored to daily training needs.