Lower incisor with removable half of crown, lower canine separates in two longitudinally, lower molar with one root is one-piece and two roots separate into three parts, upper molar with three roots separates into three parts.
Model shows both sides of an eye, enlarged 5 x. One side of the model shows the eye socket with a sagittal cutaway and the background to the eye and the electron microscopic fine structure of the retina are shown separately.
Orbit Carbon atom, Cb, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 10 mm diameter atom centre, Allene or Acetylene, Color: Black
Orbit Hydrogen atom, Hb, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 10 mm diameter atom centre, Hydrogen bond, Color: White
Orbit Nitrogen atom, Nm, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 10 mm diameter atom centre, Trigonal bipyramid, Color: Blue
Minit Phosphorous atom, Pk, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 6 mm diameter atom centre, Tetrahedral, Color: Purple
Flexible bond, 90mm (double bonding), Packs of ten 90mm flexible bonds to represent double bonding, Use to supplement your Unit building sets or for building custom models