SPRiT MX Slow Extreme springs are longer than your typical springs and feature a higher starting force. Perfect for gamers who want to prevent accidental keypresses and those who prefer a heavier switch without increasing their bottom out weight. They are within 0.5% deviation as of October 2020.
Slow Extreme II springs feature a +3g starting force compared to their Slow Extreme I counterparts. All springs listed here are Slow Extreme I unless otherwise denoted.
Each bag contains ~100 springs.
Further descriptions can be found on SPRiT's website.