Sounds are rods that are designed to be inserted into the urethra, an intense sensation that many find to be the height of ecstasy. Much like how anal beads excite, this stainless steel sound is designed to add even more sensation and pleasure by adding round pleasure bumps that increase in size as you move up the length of the sound. The further in you go, the more sensation. The sound itself is stainless steel for years and years of high quality insertion play. Measurements: 7 inches in total length, 5 inches insertable. Balls range from 0.31 to 0.47 inches in diameter. Material: Stainless steel. Color: Silver