Tested and confirmed working, alcohol-disinfected. This is a Qanba Obsidian that has been converted to leverless and has additional buttons installed. The buttons have been replaced with silent QANBA Gravity KS buttons. The yellow button on the top is a Sanwa button, but it is non-functional. As shown in the photos, there are small scratches overall, and one side of the rubber pads on the bottom is partially peeled off. Please understand that this is a used item, so only those who understand this are welcome to purchase.