Equilateral Prism, Material: Acrylic, Useful for experiments in Optics, Light Refraction and Wavelengths, Will create a rainbow (even in room light) by using the simple led light of a smart phone, User will need to create a small slit in a black piece of paper, Size: 3in Hx1in W
Coccyx (Tail Bone), Model, Human Bones, Plastic, These individual bones are a great addition to you collection, used as a match for your existing Eisco disarticulated skeleton, or to allow students to compare general skeletal structure