GSC International SCRD-CS Refraction Tank, Semi-Circular, for Science Education. Case of 100.

This semi-circular refraction tank has a printed protractor on it to observe and measure refraction. Instructions included. Sold in a case of 100. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under. "

This semi-circular refraction tank has a printed protractor on it to observe and measure refraction. This is a great demonstration for a physical science class. An instructions guide is included. Sold in a Case of 100. Use a laser to shine though the tank and determine refraction Help students to understand Snell's Law in a fun visual demonstration