PM-545 ATOMIC MODEL SET 60 BALLS ECONOMICAL

The most instructive and exceedingly useful set for students. Set
contains 60 different coloured plastic Balls in a plastic box. The balls
represent various elements. A packed of polythene linkage is also
supplied with each set. 15 Large size black balls with 4 holes
representing Carbon, 5 Large size blue balls with 4 holes
representing Nitrogen, 6 medium size red balls with 2 holes
representing Oxygen, 4 medium size yellow balls with 2 holes
representing Sulphur, 10 small size white balls with one fixed
linkage representing Hydrogen,5 small size white balls with one
fixed hold representing Hydrogen, 10 small size green balls with
one fixed hold representing Halogens, 5 small size brown balls
with one fixed hold representing Metals, 25 polythene linkage of
different size.