Invicta - Bug Pots, Set of 10Children will find the bug pots a useful addition to their study of nature. Can use the individual transparent pots with magnifying lids to observe findings. It comes complete with 5mm squared measuring grid in the base and 2. 5x magnification in the lid. Allowing students to compare and measure the size of their creature without having to touch it. The bug viewers are an ideal resource to investigate nature and to explore the world around us: view