Callicrate Smart Bander Loops by No-Bull Enterprises are used with the Callicrate Smart Bander. The extra-strong Callicrate bander loops are produced using a special latex formula that is over three times stronger than pre-made latex rings. A patented no-slip clip holds the tension for immediate and total blocking of the blood vessels, ensure a faster scrotal drop with less pain and swelling. Because each loop is ratcheted to the precise tightness required, each use provides a custom fit. For use with the Smart Bander kit only