When designing your next PCB, if you're not sure what sort of tactile switches you can fit, or how they would look, this Tactile Switch Assortment with 25 Different Buttons (10 pcs each type) is incredibly handy! You get just enough that you can prototype and even lose a couple pieces, but not so many that you're drowning in buttons.

Also great for repair, if you're not positive of what tactile switch is in the appliance or device you're using. 

Each switch is momentary-type, where the contacts on either side close when the button is pressed. Some have 4 legs since there's duplicate connections - that doesn't mean there's two separate switches. Use a multimeter on continuity mode if you're not sure of how the tact switch is set up.

These work best soldered into a PCB but many of the through-hole type can be used on a solderless breadboard as shown in this tutorial.

Includes:

1. 6mm x 6mm x 5mm
2. 6mm x 6mm x 4.3mm
3. 6mm x 6mm x 5mm
4. 12mm x 12mm x 10mm
5. 6mm x 6mm x 5mm
6. 2mm x 4mm x 3.5mm
7. 3mm x 6mm x 2.5mm
8. 3mm x 6mm x 5mm
9. 3mm x 6mm x 4.3mm
10. 3mm x 6mm x 5mm
11. 3mm x 6mm x 3.5mm
12. 3mm x 6mm x 2.5mm
13. 4.5mm x 4.5mm x 1.5mm
14. 4.5mm x 4.5mm x 3.8mm
15. 4.5mm x 4.5mm x 5mm
16. 4mm x 4mm x 1.5mm
17. 4mm x 4mm x 0.8mm
18. 6mm x 6mm x 3.1mm
19. 6mm x 6mm x 5mm
20. 6mm x 6mm x 5mm
21. 3mm x 4mm x 2mm
22. 3mm x 3.5mm x 1.9mm
23. 12mm x 12mm x 5mm
24. 12mm x 12mm x 7.3mm
25. 12mm x 12mm x 5mm