Deepclene Plus Whiteboard Cleaning Spray comes in a 150ml bottle and works as an active renovator to recondition the board surface, as well as removing permanent ink and stains. Use it monthly to maximise the life of your Nobo whiteboard. - Nobo original board cleaning system improves white board appearance and life. - 150ml bottle of Nobo Deepclene Plus removes in the most stubborn pen marks. - Foaming cleaner.