Refill color:

White pen-white (erasable) [1]]

White pen-black (waterproof) oily [1]]

White pen-blue (waterproof) oily [1]]

White pen-red (waterproof) oily [1]]

Black pen-black (waterproof) water [1]]

Black pen-blue (waterproof) water [1]]

Black pen-red (waterproof) water [1]]

Black 45mm (oily) can be added with ink [1]]

Red 45mm (oily) can be added with ink [1]]

Blue 45mm (oily) can add ink [1]]