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