The Doc Johnson Glo Slim Vibrating Anal Plug. Enjoy the new Glo butt plugs and light up your nights. These playful plugs feature a 7-function vibrator built right into the GLO-ing toy. It measures 4.5" total length with 3.8 insertable and 0.9" in diameter, perfect for novice anal play. Non-Phthalate, Body-safe PVC material featuring our Antibacterial Sil-A-Gel formula. Proudly made in America. Features 7 function vibration. Requires 3 AAA batteries (not included).