The Encore Impo-Aid Tension Ring Kit is safe way to maintain a rigid erection longer or to just create a more rigid erection. The Encore ImpoAid Ring Kit is recommended by doctors as a first choice of treatment and can also be used with other methods of impotence treatment like Viagra or Injection therapy. The Encore Impo-Aid tension band kit is perfect for those with a mild case of impotence or desire to enhance their sexual performance. Encore Impo-Aid Tension Ring Kit Features: Can be used with Viagra or injection therapy Maintains longer erection. Strengthen weak erections Reusable - easy to use Affordable. Includes: 4 Rings (Includes Size 3, Size 5, Size 7 and Size 9 Rings) Loading Cone Instructions