[Packaging]:Using a PVC plastic packaging box, and placing every switch separately which can better protect the shaft body from damage and prevent pins from bending.Note:Switch Opener is not include. [Product parameters]:Tactile|Operation Force:40gf; Return Force:=10gf;Conduction Travel:2±0.4mm;Total Travel:3.7±0.3mm;Operating life:70million Cycles(min). [Compatibility]:Compatible for 5-Pin RGB/SMD hot swappable;Compatible with most hot swappable mechanical gaming keyboards;Fit most keycap sets with cross stem. [Feature]: smooth consistent and give your keyboard a better sense of percussion. [High Quality]:Kailh Midnight Pro switches comes with 5-pins has high stability; Long life with 70 million cycles.