MDF Babinski Buck Reflex HammerHandcrafted Since 1971 Lifetime Warranty Latex Free. The MDF Babinski Buck Reflex Hammer is a 5 in 1 multifunctional hammer designed to perform all reflex tests with less effort and greater patient comfort by combining the functions and features of an integrated Babinski tip, dual mallet Buck percussor, and built in brush into one reflex hammer. Head: The balance weighted head is outfitted with large and small mallets constructed of TPR for precise