750pcs 10 Types Tactile Push Button Touch Switch Remote Keys Button Microswitch for school education

Feature:

Long life span, durable???
Wide application???
Temp: -50a??~80a?????
Cycle time: >100000 times

Application:

TV, Audio equipment, Video recorders, Cameras, Computers, Game consoles, Fax machines, Walkie-talkie, Batons, Machine tool control unit, Photocopying, Printers

Package included:

75pcs x 3x4x2.5(bind feet)?? ?
75pcs x 3x4x2.5?? ?
75pcs x 3x6x4.3?? ?
75pcs x 3x6x5?? ?
75pcs x 3x4x2 (2 feet)?? ?
75pcs x 3x4x2 (4 feet)?? ?
75pcs x 4x4x1.5?? ?
75pcs x 4x4x0.8?? ?
75pcs x 3x6x2.5?? ?
75pcs x 6x6x3.1?? ?
3 x box??