[Compatibility] Compatible with all Braun Clean&Renew System (Activator, Synchro, Pulsonic and Series). These are Clark Shaving Co. branded cartridge and are not created or sold by Braun. | [Cartridge] Length is about 4.5 inch. Width is about 3.75 inch. Height is about 1.75 inch. | [Protect Your Shaver] Lemon Fresh Formula: alcohol-based solution that cleans and lubricates the shaver | [Premium Quality] MADE IN USA. Fresh fragrance for a clean-feeling shave. | [Frequency Of Replacement] Replace the refill cartridge every 3 months to experience a shaver like new, every day. | [Friendly Customer Service] Please feel free to contact us if you have any questions about our products, we'd like to help you!