1. Material: PBT
2. The surface is treated with matte finish, high hardness
3. Wear-resistant, comfortable to touch
4. Two materials are injection molded at the same time, and the characters are not easy to wear
5. Dual-satellite positioning, click the big button to balance and press it, and the button is not stuck
6. Weight: about 200 grams
7. Specifications: 104 keys