Maze exploits the conflict between the innate fear that rodents have of open areas versus their desire to explore novel environments Open Arms are equipped with a height-adjustable lip to minimize falls Lip or ledge can be adjusted from 0 to 15 mm to minimize falls and to provide optional thigmotactic cues Available for rat or mouse Closed arm walls are held solidly in slotted base, but lift off for easy cleaning Grey, non reflective base plate Removable walls and legs mean the maze can be stored flat when not in used