Osbon patented tension rings: engineered for safety, performance and comfort. This is the high tension.
Provides the highest tension of all our standard tension rings. These patented tension rings are medically engineered for safety, performance and comfort. The unique upper extruding bumps are positioned to press against the veins that maintain an erection. The lower urethral “U” notch allows for ejaculation. The rings may be used individually or in various combinations to maintain an erection created by the Vacuum Pump. The User Guide details seven possible combinations to accommodate a wide range of penile girths and desired results. Rings are latex-free and should be replaced every 1-6 months, pending usage.
FDA Approved |
User Success Rate |
Drug-free |
Ring D (M) Inside diameter 0.75″ (19 mm)
Ring B (L) Inside diameter 0.875″ (22 mm)
Environmental Vision Statement:
At Macdonald’s Prescriptions, we are committed to promoting environmental sustainability through responsible pharmacy practices, efficient resource management, and community education. We strive to reduce our ecological footprint by minimizing waste, conserving energy, and supporting green initiatives in both our pharmacy operations and partnerships.
Gold Status Program:
We’re proud to have achieved Gold Status for our environmental program. This recognition reflects our efforts to maintain sustainable practices and align our pharmacy operations with green industry standards.
BC Green Business is a certification program that supports businesses looking for practical and affordable ways to reduce their environmental impact and contribute to their local communities.
We are committed to fostering an inclusive, equitable, and diverse workplace where everyone feels valued and supported. Our hiring practices, training programs, and workplace policies are designed to remove barriers and create opportunities for individuals from all backgrounds.