The ZOLO Deep Throat BJ replicates genuine oral sensations with textured inner sleeves that provide intense stimulation and the realistic mouth opening that feels like entering the real thing. The coiled and ribbed textures in the sleeve run all the way through, providing full length stimulation. Its ergonomic, easy-to-hold design guarantees comfort, letting you go as fast or as long as you please. And cleanup is a breeze with the open-ended, removable sleeve.