Physical Optical Kit Laboratory Equipment Optical Concave Convex Lens Prism Set Optical Test Box ( Item#: E15258 )

You can do optical experiments by this set of Optical equipment and you can adjust different light with your kids.

Feautres:
You can use this to do optical experiments, to explore the refraction of light.
To help children become interested in physics.
Promote the relationship between parents and children.
Smooth surface, fine workmanship, harmless, will not hurt hands.
It's stored in a protected box. No damage to equipment.

Specifications:
Material: acrylic
Battery: 2 * AAA
Water channel: 48 * 30mm / 1.8 * 1.2in
Spherical lens: 14 * 6mm / 1.9 * 0.2in
Convex lens: 48 * 10mm / 1.8 * 0.4in
Concave lens: 18 * 10mm / 0.7 * 0.4in
Glass brick: 40 * 12mm / 1.6 * 0.5in
48 * 20 * 10mm / 1.8 * 0.8 * 0.4in
Glass plate: 48 * 30 * 2mm / 1.8 * 1.2 * 0.08in
Chess: 23mm / 0.9in
Biconvex lens: 72 * 35mm / 2.8 * 1.4in
Prism: 40 * 35mm / 1.6 * 1.4in
Laser-beam generator: 100 * 60mm / 3.9 * 2.4in
Package size: 235 * 160 * 50mm / 9.3 * 6.3 * 2.0in
Package weight: 435g / 1.0lb

Packing List:
1 * Laser-Beam Generator
2 * Glass Brick
3 * Mirror
1 * Biconvex Lens
1 * Water Channel
1 * Prism
2 * Chess
1 * Spherical Lens
1 * Convex Lens
1 * Concave Lens
2 * Battery