I use these pens for some time. Skeptical at first, I was only because I thought: Can a manufacturer who is "really" specializes in disposable pens and quality disposable lighters, also produce good crayons? But I should not be disappointed. So far I had already colored pencils from Faber-Castell (The variety of the brand, which can be erase). One might think, a renowned manufacturer such as Faber-Castell produces better crayons as BIC. But far from it. The BIC crayons seem to get down on paper about double the color intensity. I was very satisfied and would definitely buy again if I need crayons. Even when tips I can not talk about problems. I have a completely normal sharpener with small and large sharpener. And thus let the pen do easily pointed.
In this respect, many reviews on this product are incomprehensible to me, is where talk of that the color is not intense, there were problems with the tips or you'd have to press very solid. These statements I can not confirm absolutely.
I bought the pins about a year ago for 2-3 euros at Tegut. If possible, you should buy these pens on site, where they - like Tegut - only half of cost, what one with an Internet order pays (are at tegut are not permanently in the range, but that was merely an action beginning of school year).