Bass drum mono trigger from Yamaha. Compatible with any bass drum with wooden hoops. Chrome-plated metal casing. Knurled screw for setting the sensitivity of the sensor. Including cable. Compatible with Yamaha DTX900M, DTX700, DTX502 and DTXM12 modules. Dimensions: 45 x 97 x 86/95 mm. Weight: 340 g. Colour: Chrome