The top bead can be pulled up and down the string. Pull it down the string to tighten the galaxy beads and spin the round bead at the bottom to watch your galaxy spin! 
 
 
Features:
Necklace has 1 pearlized abacus bead, 2 15mm galaxy print beads, and 1 12mm pearlized round bead.
I use a plastic breakaway clasp for easy on - easy on/off use! No little metal pieces to fight with, no tiny holes to fit just right. 
 
Materials:
Silicone
Satin Cord
Plastic (clasps)
 
Textures:
Smooth (galaxy beads)
Rubbery smooth (pearlized beads - silicone material!)
 
Size:
Galaxy beads are 15mm.
Lentil bead is 12mm.
Round bead is 12mm.
The necklace, from clasp to clasp, is roughly 35". 
 
Weight: The entire necklace weighs .17 ounces.
 
Noise Level: 1 - Silent
 
Chew Toughness: 2 - Medium
 
 
 
I try to accurately represent each product's color, but actual colors may vary due to differences in computer monitor/mobile device settings.
 
CHOKING HAZARD: Small parts. Not for children under 3 yrs. Please do not leave children unsupervised with this item. Not intended as a toy and is meant to be used with adult supervision.
 
Printed Silicone Beads: Although printed beads are 100% non-toxic, there is the potential for the print to come off after extended or aggressive use. The bead under the print is white.