Faber-CastellPremium
Polychromos colour pencils, tin of 60
The classic oil-based artist coloured pencil. Hardly breaks, covers extremely well and layers cleanly. For cosy colouring books it's almost 'too good' — but that's exactly why experienced colourers eventually buy it, once budget pencils start turning grey from over-layering. No bleed-through risk on normal paper, since it's wax and oil based and applied dry.
View on Amazon