This is a spiral cymbal made by modifying a SABIAN AA series ROCK CRASH 16-inch cymbal. Since it was originally a hard and powerful professional-use rock crash cymbal that could be used normally, it has a wide volume range and allows you to enjoy changes in tone with touch. The original is discontinued, and I haven't tried it, but it has a trashy tone and a long sustain, so it seems like it could be used in interesting ways. When hung, it extends about 50 cm, It's compact and flexible in setup. This item is made by modifying a used cymbal, so there may be rust, dullness, and dirt. The cut surfaces and edges have been polished and buffed, and finished smoothly, but please understand that this is amateur work before purchasing. If you have any questions or concerns, please comment. Thank you for viewing.