Pretty Love Beginners Mini Anal Kit Silicone Plug Prostate Stimulator kit in sizes for beginners. Silicone. Suction base. Beginner friendly shapes. Small butt plug 85mm x 25mm e or approximately 3.34 inches by .98 inch. Medium butt plug 115mm x 28mm e or approximately 4.52 inches by 1.10 inches. Large butt plug 130mm x 35 mm e or approximately 5.11 inches by 1.37 inches.