The Apollo Wireless 7-Function Stroker is a soft, tight, stretchy stroker with removable vibrating stimulator. Stimulator has 7 functions of vibration, pulsation and escalation. Textured stroker is reversible for added sensations. Choose your perfect stimulation position - top, side or use it independently. Stroker may be used with or without stimulator. Easy push button control - hold for 3 seconds to turn off. Materials: TPR (stroker) ABS with Silver Plating (stimulator). Batteries included (3 watch, 6 included). Dimensions: 6â   x 2.5â  /15.25 cm x 6.25 cm (stroker), 2.25â   x .75â  /5.75 cm x 2 cm (stimulator).