This chain is awesome.  It is not dainty.  It has a nice width. I would say about medium.  It shines like a diamond cut and has had up well on my 5 year old daughter with constant wear including bath times.  I would definitely recommend this chain for any child or adult would are looking for short chain.

UPDATE:July 5 2012
Bought the chain in January, now the chain is black.  I don't understand.  I bought one in 14" and the other in 16".  The 14" looks great but the 16" completely tarnished and turned black.  Tried to polish it but no hope.  Would not recommend if for intend to wear long term.  Looking to replace as I type this.