Your purchase includes an aluminum alloy pretraining chamber tailored to confine mice or rats within the Morris water maze. This specialized chamber enables researchers to safely introduce rodents to liquid/water/milk apparatus, facilitating the reduction of anxiety and fear responses while optimizing learning outcomes during trials. MazeEngineers provides various pretraining chamber configurations, with the most economical option being the 4-sided chamber suitable for the 4 or 5-foot Morris water maze.