The apron is made of polyester and cotton the organs are removable pasted in velcro Great teacher aid for classroom a fun way to teach anatomy help kids know what's inside human body Manufacturered by AIPINQI. These versatile aprons can also be used in art classesfor theater propsbirthday party favors and cute event decorations for a themed party Size: 18"W x 24"Ldesigned for ages 3 years and up A visaul help for children learning the names location size and the shape of the main body organs