The stainless steel Pratt set is made up of 8 - 11.5 inch long sounds. Each sound gradually increases in width, which allows you to find a perfect fit and experiment with larger sizes.

Ideal for beginners and experienced urethral play enthusiasts, each sound is double-sided, with a different sized girth on each end. Their graduated sizes allow you to work your way up. These urethral dilators have a slight 'S' shape. 

Contains 8 Sounds in 16 sizes from 13fr (1/8) to 43fr (9/16) 
Sounds are 11.5' long