0 absent, 1+ hypo/Jendrassik, 2+ nl, 3+ hyper/spread, 4+ clonus
First popularized and named at National Hospital for Nervous Diseases in Queen Square, London.
Queen Square reflex hammer with Nylon Handle
McGill Reflex Hammer and 2 Point Discriminator Combination Tool.
Combination taylor reflex hammer and tuning fork.
High density white plastic handle.
National Hospital Pattern Hammer (Not Currently Available)