A reflex hammer is a medical instrument used by healthcare professionals to test deep tendon reflexes. It typically has a rubber head and a handle, allowing the practitioner to strike tendons gently. This helps assess the nervous system's function and can indicate potential neurological issues. The most common type of reflex hammer is the Taylor hammer, which features a triangular head. Other designs, like the Babinski hammer, may have additional features for specific tests. Reflex hammers are essential tools in neurological examinations, helping doctors evaluate a patient's reflex responses and overall health.