13-Piece Steel Tuning Fork Set in Wooden Case Subcategory_Globes Autoclavable polypropylene test tube stand

Autoclavable polypropylene test tube stand holding six 25-mm tubes with six drying pins on the back

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

and buffers for velocity

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

Used to read spectral lines against a 400-700nm graduated scale

13-Piece Steel Tuning Fork Set in Wooden Case Subcategory_Globes Autoclavable polypropylene test tube standThirteen nickel plated steel forks spanning C 236Hz to C 512Hz at + 5% accuracy, each plain shanked for clamping or holding, supplied in a wooden case for full classroom harmonic investigations.