This is a huge, spiral, molded purple plastic bangle bracelet. This massive bangle is 1 5/8" wide with super thick ribbed walls. It measures 2 5/8" across the opening and 8" around the inside. It has a foil label on the inside which reads "Made in Western Germany".
Note: the color is a deeper purple than shown in the photos. My flash lightened the purple in the photos and when I shot without the flash the color was too blue! It is a true purple rather than a lilac or lavender color.
The bracelet is super shiny and in absolutely excellent condition. It is featured on page 121 of Plastic Bangles by Lyn Tortoriello & Deborah Lyons., Schiffer Publishing,c. 2005.