Supple leather, 3-snap adjustable ring for support and stimulationRemovable vibrating micro stimulatorLeather (ring) Chromed Steel (snaps) ABS with silver plating (stimulator)Batteries included (4 watch, 8 included)8.25 x .65/21 cm x 2 cm (ring)2.5 x .6/6 cm x 2 cm (stimulator)