[Function] It is mainly to prevent dust from entering the mechanical switch and increases tightness to improves stability. The single layer is integrated on a piece of plastic film, which needs to be torn and installed by hand.
[Material] Transparent HTV+PC double-layer composite silicone material, after pressing and installing, it can produce better fit according to the concave and convex surface of the switch cover, and the sealing and cushioning effect is higher than the single-layer version.
[Instruction] When installing, it is recommended that the frosted surface face down to the bottom of the switch, and the reflective surface face up to the switch cover. It is not recommended to install and use repeatedly.
[Warm Tips] Only switch paper, not including other things. It only have used at cherry switch and the switch which has some internal structure with cherry switch. Kailh and box switch can not support it.
They are okay. Pretty annoying to put on, Not like other switch films I would recommend you pay a little more money for thicker/better brand than these but if you can't get the better brands these will be fine.
