No need to shake these safe, no-mess opaque pigment markers, they're non-toxic, quick drying, odorless, permanent and suitable for acid-free environments.
The Fine Point markers have a 1.0mm tip for general drawing and detail coverage.
The Dual Point markers have two points: a chisel point at one end for both detail and wider coverage and a finer bullet point at the other.
They meet ACMI non-toxicity standards and are safe for children to use.