Bathmate Hydro Rocket Douche just add water. Easy to assemble to use. Easy to disassemble to clean. Color Black. The Bathmate Hydro Rocket is a personal hygiene device, designed to be used in the shower as a compliment to your personal cleansing routine. With an ergonomic, easy squeeze 325ml e or approximately 11 fluid ounces capacity bulb and innovative non-return valve to prevent water returning back to the bulb, thus eliminating any chance of contamination, you can be sure of a thorough hygienic clean. The fully detachable nozzle and flat bottom base makes cleaning your Hydro Rocket simple, and even comes with a discreet bag for safe storage after use. The Hydro Rocket is made using only skin safe tested materials, ensuring safe, hygienic use, so you can be assured that it really is the must-have essential for clean, confident play. Materials Silicone.