Black drum stool made by YAMAHA, model DS550U. - Brand: YAMAHA - Model: DS550U - Color: Black - Type: Drum stool Seat size: Round seat (294mm diameter) Seat height: 370-550mm Used a few times indoors as a guitar practice stool, and has not been used since, so the condition is good. Please refrain from purchasing if you are sensitive to the condition, as it has been in someone's possession once. The seat will be disassembled and shipped via Rakuraku Mercari delivery service.