Dual-action Castanet Machine from Grover Pro The GWC-DA Dual-action Castanet Machine from Grover Pro is the ideal do-it-all castanet set that percussionists will love. This Castanet Machine features two settings with fully adjustable tension that suits your desired playing response. Made from a solid oak frame with medium rosewood clappers, these castanets can be played on either a tabletop or mounted onto a standard cymbal stand. Percussionists here at Sweetwater are really blown away by the crisp, bright tone the Dual-action Castanet Machine produces — it's the perfect add-on to any percussion setup!Grover Pro GWC-DA Dual-action Castanet Machine Features: Wonderful do-it-all castanets for your percussion setup 2 settings plus fully adjustable tension suits your desired playing response Solid oak frame with medium rosewood clappers for wonderfully crisp, bright tone Can be played on either a tabletop or mounted onto a standard cymbal stand