This deluxe kit is great for someone looking to into sounding play for the first time and great for urethral play enthusiasts as well. These sounds are different from other sounds because of the one flat end. The flat end is most commonly used to provide a better grip. More advanced users may use it to hook up to an electrode for electro-sex play. This sound kit comes with 14 sounds ranging from 4 French to 17 French (see conversion chart below). Each sound is 7.5" long with 5.5" of insertable length. These sounds are slightly curved and are made from chrome-plated brass. The sounds come in a black velvet lined zippered case.