Their main negative is that they break and wear out very easily. Just by drawing a line, you have lost the same percentage of chalk as it leaves with friction.
Other than that, the quantity of chalk in the packaging is very good and the carrying case is convenient. The price corresponds to both the quality and quantity.
So, a fair purchase that deserves a solid 3 stars.

Very good product and a very good idea for children who do not like painting because it gives them an alternative and very original and interesting way to engage with it. My child loves to paint a lot and was thrilled, but we also gave them as a gift to a friend of ours who did not want to engage with painting at all and they liked it a lot! Their mom couldn't believe it!!

Apart from the fact that anyone who hasn't bought them as a product should do it yesterday, it is also a super product and definitely worth the money and excellent quality!!!! We spend a lot of time drawing mainly on the rubber on the swings!!! Many children gather who are not familiar with these crayons and they are amazed!!!!