I call this series my Dancing Whimsies!  They are so colorful, have so much to look at, move with your every step and get lots of compliments when worn.  There is no clasp, it slips over your head. There are 4 or 6 strings, each holding a unique bead or 2.  I use all sorts of beads on these necklaces - metal, sea glass, handmade glass, acrylic, fuzzy, rubber or felt. From the top of the necklace to the bottom of the longest string is approximately between 19" and 22".
 
This particular piece has a blue, silver, clear and white scheme and is strung with 2mm and 3mm
black leather cord. 
 
These necklaces look great with a pair of blue jeans and a big white tee shirt!!