these have three or four different colors in them. definitely white, silver or light gray, a dark gray, and in some lights the dark gray almost looks purple. or black. these are long, 64 in so you could double up two or three times and whereas layers. no clasp. my wrist is kind of small and I can even create layers on my wrist of 7 rows. lots of options could also layer it with another set of white pearls or black pearls. just thinning out a bit. these were my mothers. she had two sets of these one for my grandma and one for her.