This is the Philips SmartClean Cleaning Cartridge 4+1 pack [JC305/50]
The cleaning cartridge for the SmartClean system gives you a convenient way to clean,
lubricate and refresh your shaver, for that new-shaver feeling every day.
Keep your shaver like new
Cleans both gel and foam from shaver heads
Active lubrication system reduces friction and wear on shaving blades
Dual Filtration system leaves your shaver up to 10 times cleaner than water alone
This economical 5 pack keeps your shaver clean and fresh for 15 months