Basic Inorganic and Organic Chemistry Molecular Model Set, 78-Piece Physics_Mechanics tightened with an Allen wrench

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

this metal wave apparatus pairs the rotary handle with a degree scale so students can read phase against vertical displacement

Benchtop hydro-electric power station at 13 by 9 by 7

Four-metal block set at 2 by 0

Enlarged three-times life size with seven separable parts exposing cornea

Basic Inorganic and Organic Chemistry Molecular Model Set, 78-Piece Physics_Mechanics tightened with an Allen wrenchSeventy eight piece molecular model set with 45 atoms and 33 bonds for building basic organic and inorganic structures, packaged in a hard plastic case with standard size pieces.