35mm latex external catheters for use with Norela systems. Size from penis circumference in mm, then divide by 3.14. If you fall between sizes, use the smaller size.
Latex allergy can be an issue. If that is you, talk with your clinician about a silicone option.
Contains latex. If you have a latex allergy, talk with your clinician about a silicone catheter. Barrier film such as Cavilon can help with irritation. Measure circumference in mm and divide by 3.14. Between sizes? Take the smaller one.