The Roland RT-30K with RT-30HR Acoustic Drum Trigger TWIN PAK is a high-quality drum trigger system designed for electronic drums. This product includes two triggers, one for acoustic kick drums and one for dual zone drums, like snare or toms. These are like new. Never gigged, and hardly any use. With the trusted Roland brand and advanced technology, this product is ideal for drummers looking to enhance their performance and incorporate both acoustic and electronic elements into their music. Check out our other educational stuff,,,