Grover Pro: BlocKnock, Who's There?
The Grover Pro BlocKnock is a perfect solution for the percussionist who is called on to play a multitude of instruments but might not be given enough time for stick changes. The BlocKnock fits onto any Grover Pro woodblock, and includes an adjustable striking face with three positions for that traditional woody "crack" you would normally get with a mallet. It can also be removed at any time for situations where it is not needed.
For more information on the BlocKnock, you can visit the Grover Pro website, here.