8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Pack Size_50 and an ignition light that

and an ignition light that fires on compression

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

delivering wheel-driven power to a lamp or a Newton color disc

5 inches of nylon bristles for scrubbing glassware up to 4 inches in diameter

8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Pack Size_50 and an ignition light thatEight aluminum shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9 16 to 7 1 8 inches, each foam protected in a wooden case with frequencies labeled.