This is a Vintage Black Chunky Heavy Plastic Possibly Bakelite Graduated Beads Necklace.  It has a maximum length of about 28" but it has an adjustable clasp and it can be made a little shorter.  It is heavier than I thought it would be which is why I think it may be Bakelite.  It is in very nice condition.   Please, refer carefully to the photo / photos for the exact condition of this item. I consistently ship items out the next business day following the receipt of payment.  I generally ship daily except on weekends, holidays or when I am on buying trips or vacation trips. If payment is received by 10 a.m. central time, it will generally be shipped same day. If not, I will ship next day.  Always happy to combine shipping whenever possible, most of the time it will be the same cost as one item. Thanks and good luck!!