Originally Made by Cherry in Germany. Distributed by Granvela. For DIY Replacing switches of your mechanical keyboard. Packages includes : 1 Puller tool,12Pcs Switches. How to replace switches on mechanical Keyboard? 1. Prepare tools: Soldering iron Solder pump ( optional) Electronics-grade solder Keycap puller tool Compatible replacement mechanical keyboard switch Small screwdriver and/or pry bar to open the keyboard case Small tweezers or pliers Compatible LED and wire cutters (if the keyboard is lit) 2. Selecting the Right Replacement Switch 3. Disassemble The Keyboard Case 4. Prepare To De-Solder 5. Remove The Switch 6.Install The New Switch 7.Test The Switch 8. Re-assemble Your Keyboard