Used once. You can tie the obi in front and then simply rotate it around to the back with the obi board. This makes tying the obi easier than doing it behind your back. It can be used with both kimono and yukata. Width: 12.7cm, Suitable size: 62-97cm Core: Polyethylene, Bias: Acetate, Velcro: Nylon Made in Japan How about it for the yukata season coming up?