109 Keys USB 2.0 Full Sized Waterproof Flexible Silicone Keyboard (Blue)

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