Suitable for most cross-shaped switch stems on the market. If installation proves difficult, aim a hair dryer at the bottom cross socket and blow hot air for 15 seconds, or soak the keycap in hot water at 60–70°C to soften it before fitting.
There are variations across different keyboard switches. Forcibly pulling or inserting keycaps may wear down the cross stem, resulting in loose keycaps. Do not force installation to avoid unnecessary damage.