Brass Diameter: 10mm Side: 15cm This is a handmade triangle. I've been experimenting with various shapes while making these, and I found that this shape, which I modeled after a famous triangle craftsman, produces a complex and rich sound, making it one of my favorites. I understand why similar triangle shapes are sold as high-end products by several manufacturers. This item was made by an unknown person on a whim, but I am quite confident in its sound. I'm not sure what a fair price would be. Please feel free to negotiate; your input will be helpful for future listings. Please keep your offers within reasonable bounds. Regarding the third photo, what I thought was dirt turned out to be a scratch. Please understand that scratches are unavoidable during the manufacturing process. Also, I have tried to remove any dirt I found, but there may be some I missed. Please be aware of this. I believe the impact on the sound is not significant, as you can hear in the video. You probably won't notice it from a distance. As a bonus, I'm including a 5mm diameter brass rod as a beater. I am also selling this on other flea market sites. Please note that the price may differ due to commission fees.