The Convertible Head is a 100% Ultra Premium Silicone removable attachment for the Rumble, allowing you to attach any Tantus Vibrator or Suction Cup Compatible Toy. Your toy now has all the benefits of the Rumble including 7 vibration settings and a lightweight, comfortable, ergonomic grip. Easy to clean. Head width 2.4 inches, head height 1.5 inches. Stem width 0.8 inch, stem length 2 inches. Weight 2.2 ounces. Rumble sold separately. Tantus silicone toys are handmade, hand poured, and artistic in nature. Small imperfections and variation in color, texture, density, and size are inherent in the product and are not considered defects. Made in the USA.