Below, choose which texture you want your Ass to have. Your options are:

Original
This is the sleeve that started it all! The Original Fleshjack canal is 3/4" (19 mm) diameter and untextured. By untextured we mean smooth. Due to it liberal size, well-endowed and uncircumcised men tend to prefer this sleeve. If you have aggressively masturbated with your hand for a long time, then you might have noticed a decrease in penis sensitivity. The Original is a great way to transition away from your hand and regain penis sensitivity. 

Super Ribbed
This sleeve is as intense as it gets! The 1/2" (13 mm) diameter canal is textured for maximum stimulation. Where the other sleeves leave space between the textures, this sleeve features dozens of tightly packed soft ribs to keep your penis continuously stimulated. Be careful to not excessively lubricate this sleeve or you will lose the textured intensity.