Made of ABS material safe for children your children can use it with confidence. It can be used for outdoor biological observation activities work school experiments camping travel etc. Manufacturered by BESPORTBLE. The bottom has a square grid design for easy observation and recording of the size of the observed object. In addition to being suitable for observing insects it can also be used for observing flowers coins and other small objects. The appearance of the box is exquisite and eye-catching and children will like it very much.