Uni-ball Signo UM-120SP sparkling gel pens give you a glittery finish on your arts, crafts and colouring projects. The opaque pigment ink offers a beautiful writing experience and solid colour coverage that sparkles and shines on both light and dark paper. Strong but smooth rollerball nib, ultra-smooth gel ink. The tip is a carbide ball with a diameter of 1.0 mm. Line width: 0.65 mm. The price is per piece, commercial packaging is 12 pieces.