Long necklace plastic beads pink green accents vintage jewelry ll2030

This plastic necklace is made of slightly off-white beads with silver tone accents and some spacers of pink and green and what looks like parts of jacks.

The necklace has a snap clasp marked made in Japan. Not sure if that refers to the whole necklace or just the clasp. The necklace is just under 30 inches long. Condition is excellent vintage.