4 inches by 1 inch probe. 2 inches by 1 inch stimulator. Premium Silicone probes with removable stimulator. Powerful multi-speed vibrations. Stimulator and probe may be used together or separately. Easy to use controller. Phthalate free material Silicone probe, polypropylene PP controller, ABS plastic with Silver Plating stimulator. Vibrating probe requires 2 AAA batteries, not included.