Autoblow 2 compatible sleeves come in 3 different sizes, ensuring that you get a perfect, customized fit. Although the machine comes with a mouth sleeve, you can swap it out for a vagina sleeve any time you want. Molded from an anonymous amateur model, the sleeve is lifelike and extra textured for your enjoyment. Select the A size for a thin penis, B size for a regular penis (the best choice for 85% of men), or a C size for an extremely girthy penis.