Get Hard Power Pump is a high tech, fully automatic pump with easy to use pressure control. Totally self contained, wireless design. 3 ascending levels of suction power. Auto start button with quick air release valve. Universal measurements on cylinder to track results. Flange base for secure seal. Safe and pure for body and pleasure made using phthalate free materials PS cylinder, ABS plastic buttons, ABS plastic with polyurethane PU Cote handle, case, Silicone sleeve, ABS plastic with Silver Plating/Metallic Plating decor. Requires 3 AAA batteries, not included. Bulk weight 10.4 ounces. 7.5 inches by 2.25 inches.