Designed not to be perfectly round so that bugs will find a crevice to hide in and are easier to observe. The jar contains two holes; one of which has a fine mesh covering to prevent bugs being drawn into the mouth. Two lengths of tubing (removable for easy washing) are supplied.
Invicta Education Shop is part of the Morleys Mail Order Group which has over 80 years experience supplying resources & furniture to the education sector.