Enlarged 25X and colorfully illustrated, the comprehensive model can be taken apart for an even closer view of earthworm structure. It features a sectioned and dissected anterior to the clitellum to clearly show the septa, coelom, nephridia, aortic arches or 'hearts', and even the setae. The intestine is removable for a better view of the stomach, and the reproductive organs are removable to show the sperm ducts. The three-part model is mounted on a stand and can be removed for closer study. It also includes a study guide identifying 41 structures. Size: 21"L x 10"W x 5 1/2"H.