[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]:Linear feel|Operation Force:60±10gf;Conduction travel:2.0±0.5mm;Total Travel:4.0mm;Operating life:50millions Cycles(min). [Compatibility]:Compatible with most hot swappable mechanical gaming keyboards or Cherry MX switches. [Feature]: Outemu Black switch with low resistance,fast reaction speed;Dustproof design High compatibility 3-pin design. [High Quality]:Outemu(Gaote) traditional cross shaft,low-profile MX structure dustproof keyboard switches;Long life with 50 million cycles operating life.