Single clear overlay pen. Add a touch of creative Sparkle with these fabulous glitter pens from Spectrum Noir. Featuring a flexible nylon brush for accurate, mess-free application, these pens are perfect for coloring, writing, embellishing, accenting and more!To use your Spectrum Noir Sparkle Pen: Remove lid and yellow seal then tighten barrel to break seal Shake pen vigorously to mix glitter Gently squeeze the pen until ink moves into the clear chamber Stop squeezing and brush onto scrap card until ink floods the bristles (can be encouraged with gentle squeezes if required) Give a gentle shake (with the cap on) from time to time to keep ink and glitter well mixed May need gentle squeezing if left unused for an extended period of time DO NOT dip the Sparkle Pen into water as doing so will affect the formulation