Material: PORON
Function: Could be glued to the PCB( it has glue on the back), used to buffer the force between switches and PCB, the typing sound would be modified
Versions:
    1. Hot-swap version (Both 3pins and 5pins switches can be used, RGB LED also has a hole, which would not affect the light)            
    2. Solder version (Both 3pins and 5pins switches can be used)
Size:  
    1. Hot-swap version: 15.3*14.5mm
    2. Solder version: 16.5*14.5mm
Thickness: 0.5mm
Amount: 120 pieces per pack
Weight: 18g