24 colours of refill are available Fine Felt Tip Perfect for fine detail & outlines - replacable tips. This is for 1 x 2mm pen This is an empty 2mm acrylic marker pen offers a lightly larger fibre tip than the 0.7mm version, ready for you to fill it with your choice of Montana Gold Acrylic paint. The 2mm fine pen is well suited for the detailed work and for caligraphic work just add 6mm chisle tip, it can be applied to almost any surface. The tip is robust and enables users controlled and precise detailed marks.