Grover Pro Percussion from Massachusetts, USA, come with a new percussion accessory: the BlocKnock. The BlocKnock quickly and easily fits onto any Grover Pro wood block and you can buy it separately on the company's website. The removable knocker is made from coated spring steel and hardwoods and has an adjustable striking face with three positions.
The handy little ad-on to any percussionists or drummers setup is available as a retrofitting accessory, or, included with a Grover Pro woodblock as a kit.
