Classroom Periodic Table of the Elements Photo Poster by Theodore Gray (40x20 in.) 6-12+ The Super Safe Green Laser

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

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

around a smaller photo

and energy

These lenses are included in the Tech Light Lab kit

Classroom Periodic Table of the Elements Photo Poster by Theodore Gray (40x20 in.) 6-12+ The Super Safe Green LaserThis 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