Review on Waterproof Black Ink Brush Tip Copic Multiliner SP Waterproof Pigment Brush Pen (MLSPBP) by Heather Shaw

Although this pen started great, it didn't hold up over time. It's a felt tip pen that will inevitably wear out and lose its ability to draw fine lines (exactly what I intended to use it for), but it also began to lose color at an alarming rate. I was surprised at how easily the black ink dried and how streaky it became after a few days of use. I ended up buying a Pentel Brush Pen and have already bought 2 packs of refills so I can stock up while I need them. Ink cartridges (though smaller) last MUCH longer and remain opaque until the cartridge is empty!