Tribosys 3203 is a grease used for lubing mechanical keyboard switches.
Lubricating switches greatly improves smoothness and sound. Tribosys 3203 is highly recommended for beginners and for tactile switches as it is less viscous than Krytox 205g0.
The lube will be shipped in a small plastic container.
1 mL of lube is enough for approximately 100 switches.