Awaken your partners senses with this Wartenberg wheel! The metal wheels needles are blunt enough for skin use yet prickly enough to enhance sensation and create goosebumps. Incorporate it into sensation play and kinky scenes for added teasing! Originally designed for medical nerve reflex tests, now you can see your partners body respond as they melt in your hands, feeling tingles down their spine, legs, arms, and chest. Use it gently. For a twist, drag the wheel sideways for a scraping sensation or give a light smack. Avoid the eye area and be cautious around sensitive areas between the thighs. To clean, wash with soap and water, spray with toy cleaner, or boil in hot water. The metal is nickel-free for sensitive skin. Key Features: Sensation Wheel: This Wartenberg wheel rolls over the skin, inducing goosebumps and sensual stimulation. Nickel-Free Metal: Both steel and zinc alloy are nickel-free. Temperature Sensitive: Warm or cool the metal wheel for added sensation. Overall length: 18.3 cm; Wheel diameter: 3.3 cm. Materials: Wheel: Stainless steel; Handle: Zinc alloy; Colour: Silver.