Hello.
Some online Russian dictionaries translate "felt-tipped pens" as "crayons" and even "pastels". As far as I know "marker pens", "crayons", "pastels", and "felt pens" are different things.
Markers and felt-tip pens are the same thing - an ink reservoir stored in the body, which wicks out through a porous fiber tip. The difference is just the size of the line. We tend to call them markers if they make big fat lines, and felt-tip pens if they make finer lines. With so many different sizes available, the distinction gets blurry though as to what to call some of the medium sized options. There's not a lot of consistency from person to person. I currently have an "ultra-fine line permanent marker" lying beside my keyboard as I type.
At least in the US, you'll also hear them called 'magic markers'.
They also give "felt pen", "felt-tip pen", and "marker pen".
Those are just different names for the same thing. You'll sometimes hear them called 'permanent markers' as well, especially if they're meant to not smear or wipe off. Many people refer to the permanent markers as 'Sharpies' - a generic trademark taken from the name of the most common brand.
Crayons and pastels are certainly different from markers, but again there's confusion. The confusion is that the term 'crayon' technically covers several types of writing and drawing materials in a stick form. What many people think of as a 'crayon' (a stick of colored wax), is technically a wax pastel. Oil pastels are powdered pigment mixed with oil and a wax binder. Soft and hard pastels are powdered pigments mixed with varying amounts of a dry binding agent. Grease crayons (also called Chinese markers) are colored, hardened grease. All are technically crayons, and so you will hear some people refer to them as pastel crayons, wax pastels, etc. However, unless you're an artist working in these different media, most people would take 'crayon' to mean a stick of colored wax (i.e. a wax pastel).
So I'm not too bothered with them lumping markers and felt-tipped pens together, but the other things certainly are quite different.
