Thunderclaps are comprised to 3 flat flaps. The outer flaps are flexible and made from high impact poly carbonate material. The inner flap a stiffer maple wood slat fitted with 4 holes to reduce weight and increase the volume of the clap. The outer flexible flaps on either side of the core maple slat can slap the centre maple to produce a loud clap that you can incorporate into an endless dynamic of rhythmic ideas off and on your percussion set up with the snap of wrist.