Akko Creamy Blue U1. Type: Tactile. Operating Force: 48 ± 5gf. End Force: 58 ± 5gf. Total Travel: 3.5 ± 0.3mm. Work Travel: 1.9 ± 0.5mm. Tactile Travel: 0.5 ± 0.1mm. Tactile Force: 55 ± 8gf