Soft bumper to fit standard adult size Queen Square Hospital Pattern Percussor. Also fits adult size Rabiner/Babinski hammers. Black polymer/rubber.

Available textures: extra soft, soft, medium-soft, medium, medium-tough. We only separated them into 5 levels because we had an afternoon to kill once; before that, there was only "medium" and "soft". Also available as a kit of all 5 for a discount.