Diamond Crystal Lattice Model Kit Biology_Human Anatomy Needle valve and flame stabilizer

Needle valve and flame stabilizer add precision control to this nickel-plated micro Bunsen burner running on natural gas for small-flame work

Four-metal block set at 2 by 0

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

Pack of 12 metal lattice support clamps fitting rods up to 12

Polished beech wood test tube rack with twelve vertical holes sized for tubes up to 28 mm diameter

Diamond Crystal Lattice Model Kit Biology_Human Anatomy Needle valve and flame stabilizerDiamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties.