Hybrid Dual Metallic are rollerball pens. This means that there is a small ball at the tip that ink passes by when you press the pen against the paper when writing. If you should have problems with a pen like this, it is likely that the ball is stuck with some glitter that has dried on. This is a simple remedy. Bounce the pen with the cap on against the table. Drop from a height of about 15 cm and do this a few times.