1. Portability: The signature aid card is designed to be lightweight and easy to carry, with a size equivalent to a credit card. It can be conveniently placed in a wallet or pocket, allowing visually impaired users to access it anytime they need. Whether it's in a bank, office, or any other situation where signatures are required, it can be easily handled.

2. Durability: The card is made of high-quality, scratch-resistant plastic material, ensuring that it remains intact even after prolonged and frequent use. Even after multiple bends and folds, it can maintain its original shape and function.

3. Excellent feel: The card surface is made of double-sided matte frosted material, which has a good texture and is easy to hold and operate.

4. Signature guidance: The unique design on the card provides clear guidance for visually impaired users to locate the signature position and direction. Through simple touch, users can accurately find the signature area and complete the signature action according to the guidance.

5. Enhanced autonomy: With the signature aid card, visually impaired users can reduce their dependence on others and complete the signing process independently.