Dr. Z Glitter Gels Vibrating Dong Pink. Dr. Victoria Zdrok, J.D., Ph.D. is an author Anatomy of Pleasure, a psychologist and sexologist! Her goal for her toy collection is a total body experience 7 inches by 1.5 inches. Jelly soft, sensually glittered, vibrating dongs. Multi-speed. Waterproof for play in and out of the water. Safe and pure for body and pleasure. Made using phthalate free materials: PVC. Bulk weight 7.1 ounces. Vibrating sex toy requires 2 AA batteries, not included.