This is a wonderful necklace that can be worn anywhere, from the fancy ballroom to the bluegrass jam. It's got the most wonderful pattern on the very clear glass. There is a lobster clasp. The necklace measures approximately 17 1/2" long and there is another 2 1/2" of chain you can use to lengthen it. The largest balls on the necklaceare 3/4" and the smallest are approximately 1/4''. Shipping is $3.95 including a gift box, a padded envelope for first class mail and tracking.