The Cal Exotics Posh 10-Function Flutter Enhancer is a stretchy and comfortable Silicone couples enhancer with fluttering butterfly. 10 powerful functions of vibration, pulsation and escalation. Removable vibrating stimulator. Easy push-button control. Hold for 3 seconds to turn off. Silicone (enhancer) ABS (stimulator). Requires 3 Watch Batteries (Included). 2.25" x .75"/5.75 cm x 2 cm (stimulator). 1.25" x 3"/3.25 cm x 7.5 cm (enhancer).