Stud 100 is a male desensitizer spray manufactured by Fleet Laboratories Ltd. and contains 9.6% (10 mg) of lidocaine in a pump spray with a dose measured for normal use. The spray provides a superficial anesthetic in the penis to reduce sensitivity to touch before intercourse. Easy to use and works quickly. It is a mild anesthetic that is poured three times into the penis 5 to 15 minutes before intercourse. The effect lasts about 40 minutes. The pump spray contains approximately 120 sprays and is non-toxic, odorless and does not damage the ozone layer.