original youcups universal ring-Universal Ring-penis massage exerciser 英国原装youcups万能环-Universal Ring-阳具按摩锻炼器 How to use: ~ http://www.youtube.com/watch?v=1ikcXn9rmlw Super stretchy masturbator . New sensation. Easy cleaning and maintenance free. TPR (sleeve) ABS (case). Diameter : 85mm (overall) Thickness : 40mm Bulk Weight: 75 g