American Educational 7 Piece Acrylic Lens and Prism Set Maximum Input Voltage: 400 V

Maximum Input Voltage: 400 V (DC + AC peak)

BRILLIANT DESIGN: Comes with PP flip cover to protect keyboard and screen from scratching

Sprung Earth Tip

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Self-contained suction power and heating element

American Educational 7 Piece Acrylic Lens and Prism Set Maximum Input Voltage: 400 VSet of seven lenses and prisms for demonstrating optical principles and effects for students Includes double concave, double convex, trapezoidal, plano convex, and various triangular shaped lenses Made of acrylic for optical clarity The American Educational 7 Piece Acrylic Lens and Prism Set has lenses of different shapes for demonstrating optical principles and effects for students. The set includes double concave, double convex, trapezoidal, plano