• Brand = Staedtler
• Model Number = 14610C M12ST
• Material = Wood
• Manufacturer = STAEDTLER
• Country of Origin = India
• Colour = Multicolour
• Colour pencil in classic hexagonal shape with watercolour lead, matt lacquer, dipped end
• Soft lead for amazing bright effects on watercolour paper with water and paintbrush
• Also suitable for dry colouring
• 12 Watercolour pencils comes in metal box packing

They're great for little ones because their triangular shape makes them easy to hold and use, their strong leads are more difficult to break; and their leads are produce fun, vibrant colours.

It is a little bit more details than that, but generally this is what is causing the pencil strokes to remain below the paint. 

As you can see from the images provided, the Staedtler Tinted Watercolor Pencils are of an excellently high quality.