تصميم جهاز التنفس للتعلم المبكر، لعبة تعليمية إبداعية، مسطرة رسم WIZH

The stencil must be pressed firmly against the paper, otherwise the inner gears will not grip and will constantly slip. Not good quality and way too expensive for that. Unfortunately I can't recommend it.

Plastic is some kind of rubber, it bends a circle, it escapes, it is very hard to use for an adult person and for a child it is not at all

Very very fragile plastic will not last long I think

A little soft but it's perfect