This erection enhancing strap-on adds support and comfort for both partners. Realistically designed for use by men that seek a quality strap-on penis. This erection helper is gently curved for added stimulation and can be used with or without an erection. Take i up a notch by adding some vibration This erection enhancing device includes a powerful built-in, variable speed bullet Convenient and fully adjustable elastic straps are designed to fit most waist sizes. Measurements: 6.5 inches in total and insertable length, 3 inch deep hollow shaft, and 1.67 inches in diameter at widest point. Color: Natural with Black Straps. Material: Latex. Note: One Size Fits Most. Requires 2-AA batteries, not included.