Constructed of high-impact plastic this 28"" model is perfect for every classroom use, The exterior depicts superficial musular and skeletal features of a young boy, Torso opens to expose repiratory circulatory digestive urinary and nervous systems, Internal organs are removable for closer study, Includes: 54-page Teacher s Guide with extensive back-ground information numerous activities observation and data sheets, Model is also available with four anatomy models each with an accompanying activity notebook, Also available in Spanish and French, Grades 3-12, American Educational Products have a lead ship time of 21 days, SKU: AMED560