This complete set includes everything you need to enhance and maintain a bigger, harder, longer-lasting erection! Enjoy the amazing sucking sensations and pump up your size with the medicine-ball style pump. After you watch yourself grow inside the cylinder, sustain your new size with the included All-Star Enhancer Ring, and experience even more pleasure with the remote-controlled multi-speed vibrating bullet! Measurements: Cylinder is approx. 8 inches long and has an approx. 2-inch opening. Material: Cylinder is ABS plastic; donut and masturbator are TPR; hose and bulb are PVC; controller and bullet are ABS plastic with silver plating. Color: Clear. Note: Uses two AA batteries, not included.