Hollow Acrylic Prism, cube, With Stopper - For Physics and Light Experiments, Hollow inside allows for liquid to be poured into cube, Great for physics classrooms, made from acrylic plates properly cemented together, Excellent tool for optical experiments, Size: 25x25x25mm
Homo erectus Cranium Model, Designed to give educators affordable, high quality, highly detailed, Durable replica hominins for hands-on study, Lightweight and shatter resistant, Capture fine details, For introductory level courses, Dimension: 20x13.8x12.7cm
Homo habilis Economy Cranium Model, Designed to give educators affordable, high quality, highly detailed and durable replica hominins, Resins capture fine detail, Lightweight and shatter resistant, For introductory level courses, Dimension: 17.6x11.7X13cm