Montana Black
- Empty 8mm Round Tip Marker. The 8mm empty round tip marker is a another new product to add to the range of Montana Black products we carry. Shown here is the 8mm empty round tip marker. This pump action marker has the same valve system as any other marker & has a round 8mm round tip. Able to store up to 20ml of ink, it is refillable & has replacable nibs.