This is a spiral cymbal. It can be used alone or stacked. The B20 spiral cymbal is characterized by its delicate and long sustain. When used stacked with other crash cymbals, it can produce a more gritty sound than a regular stack cymbal. Due to being a foreign-made cymbal, there may be scratches or stains from manufacturing or transportation. We have released videos on YouTube. https://youtube.com/shorts/u95VHRx6CeU?si=H1P4Y-5RPKUtp7-u https://youtube.com/shorts/F0deHcL-wbw?si=ATA8FR2NOJp8LUS9