Apollo 7-Function Premium Enhancer is a stretchy and comfortable enhancer with dual stainless steel supports. 7 functions of vibration, pulsation and escalation. Removable massager may be used independently. Easy push button control – hold for 3 seconds to turn off. Materials: TPR (enhancer), Stainless Steel (hardware), ABS with Silver Plating (stimulator). Batteries included (3 watch, 6 included). Dimensions: 1.5″ x 2.5″/3.75 cm x 6.25 cm (enhancer), 2.25″ x .75″/5.75 cm x 2 cm (stimulator).