Necklace with Colorful Square Beads/Mod Atomic Amoeba and Square Shapes
Metallic Detail - Round and Barrel Beads - Made in Japan - Vintage
29" total length; 14.5" long when worn. These were photographed on black, but they would look better against a white, blue, purple or orange top or dress.
I am not sure if these are glass or plastic because the necklace is weighty and the beads are a good quality.