This tricky stroker comes disguised as a sturdy coffee, water, etc., traveler flask. The masturbator inside is completely camouflaged - until you pop off the base! Inside, you'll find a soft, non-detailed, texture-filled sleeve awaiting your deep diving. The pop-up 'straw' conceals an airflow vent; leave it down for a tighter grip or up for a roomier feel. Also, the carrier cap doubles as a handle. The ABS and TPE (elastomer), the Fap Flask is body-safe and easy to clean and care for. Gently pull out the sleeve for a wash with mild soap and water or a favorite toy care fluid/foam. Add slipperiness with any water-based lube you love. The Flask is about 7"/17.8cm penetrable