This is a stress relief toy, a desktop decoration, and a fun pendant for mobile phones, keys, backpacks, etc. It is also a great gift in daily life. This is a small and interesting keychain, which is convenient for daily carrying and can bring you a good mood anytime and anywhere. This switchs opener is only suitable for MX switch series. Used for Cherry MX, Gateron, TTC, Holy Pandas. For DIY keyboard lovers, we personally tested and researched this switch lubrication kit.