6-Piece Acrylic Lens Set, 50mm (Convex, Concave, Plano, Meniscus) Physics_Mechanics Compact-format sonometer designed to study

Compact-format sonometer designed to study the physics of vibrating strings on a footprint smaller than the standard 1-meter teaching unit

Thirteen-piece mix of nine steel and four brass precision weights from 1 gram to 1 kilogram

Riveted 10-inch compound bar in brass and steel

Can withstand high temperatures and thermal shocks

Four-meter 6A extension cord with one 3-pin and three 2-pin sockets and a switched indicator-light handle

6-Piece Acrylic Lens Set, 50mm (Convex, Concave, Plano, Meniscus) Physics_Mechanics Compact-format sonometer designed to studyDesigned for safer per desk optics, a 50mm six piece acrylic lens set covers double convex, double concave, plano convex, converging meniscus, diverging meniscus, and plano concave.