This "kit" really helps observe the little things between 1 mm and 10 mm and especially allows binocular vision, which gives a (relief) really nice. The material is plastic course for this price, the lighting is a "plus" significant, the price / quality ratio is "good". This remains in the "toy" or "amateur" but allows for various "good hours" according passions, for by expensive. Thank you Amazon: well packaged, delivered on time ... but fun!