I got a lot of questions about the materials that I use for my 3D drawings. Here are the drawing tools I use for my mixed media technique.

WHITE
The most common question concerns my gel pen and white pencil. Here's what I use for the points of light:
- WHITE GEL PEN, Pentel Hybrid or Uni Ball Signo
- WHITE PENCIL, Caran d'Ache Pablo or Prismalo
- WHITE MARKERS, Uniposca PC-5M and Uniposca PC-1MR
- WHITE ACRYLIC PAINT, Badger Air-Opaque Ready-to-Use
- WHITE WATERCOLOUR, Ecoline Ready-to-Use
- BRUSHES FOR ACRYLIC 


COLOURED PENCILS
I always use my Caran d'Ache set of 120. I also have a set of 80. I have them since '90's and pencils are always excellent! I also use Prismacolor especially for portraits.

MARKERS and PENS
FIBRE-TIP PENS with two tips for sketching and drawing thin lines (1.0 mm tip) or colouring large areas (3.0 mm tip): Staedtler Noris Club Double Ended Fibre Tips Set of 10 
TRIA MARKERS: Tria BL (blender), Tria PB (copic markers ink 110 super black), Tria o124, Tria o177, Tria wg03 (copic markers ink wg5), Tria wg02 (copic markers ink wg2), Tria wg05 (copic markers ink wg8) Tria wg10, Tria cg02, Tria r578, Tria r465, Tria c917, Tria c647, Tria g346, Tria v718, Tria B845, Tria y337
Unfortunately the production of the Tria Marker has now been discontinued and I think I will start to use Copic Marker, because of its optional 7 nibs. I have also a Promarkers 24 set.


COPIC INK REFILL Tria markers are refillable and, cause in Italy it's difficult to find Tria Ink Refill, I usually use Copic Ink for refilling them. The colours that I use the most are these: Black 110, Warm Grey W2, Warm Grey W5 and Warm Grey W8


AIRBRUSH
I use an airbrush for doing some shadows. Airbrushing requires an Airbrush, a Compressors, Masking Film and Acrylic Ink. 
MASKING FILM: Frisket Film Roll 

GRAPHITE, ERASERS and STUMPS
I'm using these graphite pencils:
- CARAN D'ACHE GRAFWOOD, 9B Pencil, 8B Pencil and B Pencil
- LYRA B
I also use ERASER PENCILS and BLENDING STUMPS for blending both, graphite and coloured pencils

WATERCOLOURS
I use Ecoline, a ready-to-use liquid watercolour with brilliant, bright colours. I have these: 718 Warm Grey, 700 Black, 508 Prussian Blue, 506 Ultramarine Deep, 505 Ultramarine Light, 656 Forest Green, 407 Deep Ochre, 411 Burnt Sienna, 416 Sepia, 422 Red Brown, 337 Magenta, 334 Scarlet, 236 Light Orange, 237 Deep Orange, 381 Pastel Red, 201 Ligth Yellow, 100 White.

GREY TONED PAPER
I always draw on grey toned paper because my drawings appear even more realistic and more lifelike. Sometime I use also green, blue and pink toned paper.
Grey toned paper: grey paste cardboard made of recycled fiber, obtained by coupling of two cardboards, ticknesses 1.5 mm