Premium Original Vacuum Cup Stroker from Tenga. Master's craft editions. The new Original Vacuum Cup features its celebrated hour glass shape and valve structure that provide constriction and amazing suction, with all new internal details upgraded from 15 years of engineering advancement. Special valves create a virtual vacuum inside the cup to deliver an amazing sucking sensation. Also, the unique pinched in shape helps to achieve an unparalleled tightness. These advantages features combine with an arousing slurping sound and vibration to give you the feeling that you are enjoying a real deep throat experience. Features Vacuum control with air hole. Next a gentle release. Than a tight squeeze. Finally a smooth insertion! This product is a disposable and not intended for repeated use. Size 2.72 inches in depth by 2.72 inches in width by 6.10 inches in height. Insertion length 5.80 inches by insertion width 2.58 inches. Weight 0.34 pound. Other specifications: Disposable, Prelubricated. Lubricant Ring: polyurethane PU. Lubricant ingredients: Water, Glycerin, Propylene Glycol, Peg-40 Hydrogenated Castor Oil, Sodium Polyacrylate, Phenoxyethanol, Cyclopentasiloxane, Hydroxyethylcellulose, Methylparaben, Hydroxypropyl Cyclodextrin, Iodopropynyl Butylcarbamate, Cyclotetrasiloxane.