How naughty do you want it? The Mood Naughty 1 Trainer Set in premium silicone includes our bestselling original Mood Naughty butt plug in three graduated sizes. Measuring at 3, 4, and 5 inches, this set is perfectly shaped and sized to help backdoor beginners gently expand the boundaries of their anal experience. The classic tapered tip of Mood Naughty slides right in, and the firm yet flexible material and curved rocker base make these plugs comfortable and safe for extended wear.3 inches, 4 inches, and 5 inches Sizes for Training and Variety. Firm, Flexible Silicone. Tapered Tip for Easy Insertion. Curved Base for Comfortable Wear. Soft, Velvet Touch Finish. Phthalate-Free, Body-Safe.