The Wartenberg pinwheel is a medical device for neurological testing. Used to test nerve reactions (sensitivity) as it rolled systematically across the skin. Stainless steel handle with precision-machined rotating spur, providing excellent tactile feedback. Features: The Wartenberg pinwheel is a medical device for neurological testing. Used to test nerve reactions (sensitivity) as it rolled systematically across the skin. Made of stainless steel, anti-rust, durable for long time use. With a anti-skid handle, comfortable to hold and easy to operate. The wheel, which has evenly-spaced radiating sharp pins, rotates as it is rolled across, providing excellent tactile feedback. A necessary tool for neurosurgery and orthopedics doctors, and it is also suitable for medical students and other clinicians to conduct neurophysical examination. Specification: Type: Wartenberg Pinwheel Material: Stainless Steel Color: Silver Package Size: Approx. 19 * 3.5 * 2cm / 7.5 * 1.4 * 0.8in Package Weight: Approx. 70g / 2.5oz Package List: 1 * Wartenberg Pinwheel