US Patent 9437177 Percussion practice drum pad

A percussion practice drum pad which is manufactured by pouring set-in-place polymers into one or more pockets in a rigid frame. Numerous unique defined features of the frame enable the device, when struck with a drumstick, to more closely simulate both the physical and aural characteristics of playing an actual acoustic drum; one or more secondary striking surfaces; and additional features that improve portability and mounting flexibility of the device.