Risperdal Pharmaceutical Promo Pen Floating Water Drug Rep Advertising

Risperdal promo pen is used and the ink is dry so the pen does not write. It does not appear to be refillable. The center does not twist to open and the silver end just twists for the tip to go in or out. Colorful pieces float in the liquid half of the pen (see video). Please see all pictures and zoom in for additional condition details.