Reviews about Staleks Pro Expert Wooden Orange Stick

I have never encountered orange sticks like these before, they are terrible (defective). In the photo, there are 3 Stalex sticks on the right, while on the left there are 2 sticks from different brands that are perfectly sharpened and fit well on the nail plate. However, the Stalex stick is somehow convex and its tip, which should fit on the nail plate, is too short. I can't find the words to describe it, it's just awful. I bought them to work with them, but now I have to modify them myself by sharpening them with a file. What was the point of buying them then?