Product - Set of 20 soft, flexible medical grade silicone rings for stretching of tight foreskin (phimosis). Sizing - The ring sizes range from 3 mm to 38 mm (inner diameter) in increments that will help to gradually stretch your foreskin as needed. Each ring is individually bagged and labeled. Suggestion - Apply lubricant such as coconut oil to the foreskin before inserting a ring and after removal. Start with the appropriate ring size based on your phimotic band diameter. Be patient and start with a short duration of time. Discreet Packaging - This item is carefully packaged and shipped discretely in a plain bubble mailer envelope from Florida. There will be no information on the outside of the envelope related to the contents inside. Privacy - This is a private listing so your identity will be kept anonymous . USA Shipping - All orders ship within 2 business days with tracking from Florida. Within the USA, standard shipping via USPS First Class Mail is free. For faster delivery, please select the USPS Priority Mail option for an additional charge.