Features:
1) Material: a special blend of the highest grade of Japanese silicone, flexible,tough, soft and washable; helps muffle typing noises
2) Thickness: 0.5mm
3) It protects your notebook against wear and tear, spills, dirt, food crumbs, sweet, bugs and other unwanted elements from getting on or under your keys
4)Cover can put 100°C water to disinfect
5) Environment-friendly product
6) It is transparent, comfortable and soft to touch

Comparison Chart Silicone VS PVC
Does not deform It does not distort easily over a period of time.	Deforms Easily Heat from the keyboard causes it to deform easily
Average transparent
Ductility It may pull and does not distort or tear into pieces.	NO Ductility It is very thin and non-stretchable; break easily.
Wrinkle-Resistant Can be kept anyway and will not change	Wrinkles Easily Has to be kept carefully, or else will crease easily
Stays in position When typing, the protector stays in position	Slide Easily When typing, the protector slides easily.
Good thermo-stability Has a strong heat resistant (-60 C ~ 250 C).	Poor thermo-stability Burns easily and can sometimes emit black smoke.
NOTE: Only burning for 5 sec. at the time of experiment.	NOTE: Only burning for 5 sec. at the time of experiment.