This is a Deluxe metal NEEDLE HAMMER. Thogh it can be used on any part of the Body, it delivers sensation most effectively upon the Female Genitalia; also the Breasts of Ladies and Gentlemen alike. Made of High Quality Stainless Steel, its head is composed of SEVEN EXTRAORDINARILY SHARP Needles on one side, and a CLUSTER OF NEEDLES on the opposite side. The needles on this Instrument are sharper than those on the Plastic Hammers; indeed, Nurse Temperance Ature advises you that they will draw Blood if not used with caution! The lightweight handle is designed to flex; if you hold it near the tip, it will Bounce. It measures approximately 7 inches long. THIS HAMMER WORKS WITH THE VIOLET WAND.