This one is big and bold. Adjustable and up to 21 in long. Not sure if it's acrylic? Beautiful piece. All jewelry is in vintage pre-loved condition. May have some signs of wear or enamel loss, and need to be cleaned, but are overall in great condition. Any call outs will be noted. Please make sure to look at photos carefully and enlarge them if you have to. Ask any questions before buying. All sales are final and questions and offers are always welcome. Bundle and save ❣️