This is a massive, transparent, super bright yellow spiral lucite bangle bracelet. This hard-to-find bangle is featured on page 121 of Plastic Bangles by Lyn Tortoriello and Deborah Lyons. It measures a whopping 1 5/8" wide with 3/4" thick walls. It measures approximately 2 5/8" across the opening and 8" around the inside.
The bracelet is in excellent condition with none of the rough edges commonly found on these bangles. The mark on the inside of the bangle is not a flaw, it is a "sprue" or mold mark made during manufacturing.