This is for a Gibraltar Tam Mount System, 12-inch. Is it chrome-plated? The surface condition is relatively clean, and it has been unused since purchase. The tom holder mounting surface has various mounting holes that can accommodate various manufacturers. This is a part, and there is no detailed model number or manufacturer's warranty, so in principle, no claims and no returns are accepted. If you would like to confirm details such as dimensions and condition, please let me know.