Redesigned Queen Square Hammer was first popularized and named at the National Hospital for Nervous Diseases in Queen Square, London... Handcrafted in the artisan tradition by master craftsmen since 1971 100% Latex Free reflex hammer has redesigned the Queen Square Hammer first popularized and named at the National Hospital for Nervous Diseases in Queen Square, London. The result is a weighted, agile percussion device for effective elicitation of myotatic, plantar and abdominal responses with greater patient comfort. Head: The Queen Square Hammerhead is surmounted with a chrome-plated brass disc (2" diameter) grooved to house the TPR rubber collar. The weighted head and soft rubber collar is perfectly suited in provoking myotatic responses. Handle: Flexible Nylon handle consists of a slender tapering handle. The tapered point is suited for eliciting plantar and abdominal responses.