marker has an extra-fine 0.7mm tip thats perfect for small detail work. Create your own custom paint colors, or fill these empty markers with one of Montanas refill bottles. Paint refills can be found here
To refill your Montana ACRYLIC marker, follow these steps:
Unscrew, to the left, the top section that holds the nib.
Use your fingernail to help remove the valve system springs.
Add the refill paint to the open marker. Only fill the barrel 3/4 of the way full.
Press the valve system section back in and make sure it is tight.
Screw the nib section back on, to the right, and make sure it is securely tightened.
Prime the nib by pressing up and down on a test surface.