An inflatable dildo goes in at its smallest and expands once it’s there. A hand bulb pumps air into the shaft, so you set the width yourself, hold it as long as you want it, and release the valve before you pull out. Nothing about the size is decided in advance.

That makes them a practical pick for two things: working up to a wider girth gradually across several sessions, and getting a full, stretched sensation that a fixed dildo can’t change once it’s in place. Our inflatable dildos run from a 7.5″ vibrating model to a 12″ realistic, all in body-safe materials with a quick-release valve.

Use plenty of water-based lube, inflate in small increments rather than all at once, and deflate fully before removing. If you’d prefer something that stays one size, browse our squirting dildos. For anal-specific expansion, see inflatable butt plugs.