1) Features: Antipollution, waterproof, acid and alkaline-proof, dustproof

2) The special printing technology guarantees the letter on the buttons of keyboard not to be worn away for a long time

3) Environmentally friendly materials, non-toxic, harmless

4) Feeling soft without any sound while typing

5) The button can bear typing 2 million times

6) Compatible with: Windows 7 / XP / Vista

7) Size: 490 x 180 x 5 mm

8) Cable Length: 145mm