PORTLAND — Despite their recent introduction, six of the elastomer cock rings Spartacus Enterprises introduced in 2006 are now on the 2006-07 Spartacus Top 50 sellers list, according to the company. The speed at which these elastomer cock rings climbed Spartacus sales charts is record-breaking for the company.

To explain the popularity of elastomer, Spartacus Sales and Marketing Manager Sean Christensen said, "We think word is quickly getting around about the quality and effectiveness of this material. Elastomer is the best of all worlds: more flexible than silicone, more durable than jelly. We're seeing a positive response to that combination."

The company describes Elastomer as a waterproof compound with few allergens, no phthalates and no latex.

Elastomer offerings from Spartacus include the Verve vibrator line, the 2Touch toys and a soon-to-come three-pack of the record-breaking cock rings. Elastomer cock rings also are available as a display rack with a Spartacus sign.