Classroom Periodic Table of the Elements Photo Poster by Theodore Gray (40x20 in.) 6-12+ These lenses are included in

These lenses are included in the Tech Light Lab kit

The 53" x 27" (134 cm x 68 cm) size is huge

Comes in a secure black foam case with batteries included

and more for the students to reference at their desks when doing calculations

The Super Safe Green Laser Pointer is the ultimate in laser safety at <1 mW (Class 2) low power levels emitting 532 nm light

Classroom Periodic Table of the Elements Photo Poster by Theodore Gray (40x20 in.) 6-12+ These lenses are included inThis iconic periodic table poster by author Theodore Gray shows real photos of every stable element painstakingly collected and photographed in high resolution. This 40" x 20" (100cm x 50cm) poster is single sided, laminated, and made in the USA on top quality paper with high resolution printing methods. For a heavy duty classroom sized version, look at our 53" x 27" double sided edition here. *Note that the small poster does not have element names