Dynamo Delay helps couples enjoy longer-lasting sex with a clinically tested fast-acting formula that provides safe and effective results. This non-irritating spray temporarily prolongs the time until ejaculation using a concentrated 13% lidocaine formula, which provides a topical numbing sensation that works in minutes and lasts for hours! Improve stamina, increase endurance, and prolong pleasure without a prescription! Directions: Apply 3 or more sprays, not to exceed 10, to head and shaft of penis before intercourse, or use as directed by a doctor. Wash product off after intercourse.