Easy to create by yourself. Easy on hand! The easy obi knot "Datas Knee" makes it easy and easy to tie the belt. It doesnt lift up your arms and makes it easy for painful bites. It is made in front of it, so you can make it beautiful. Pre-made and portable. No needles or points. Since it can be folded up, it will not damage the belt. Anyone can easily and beautifully tie the belt by watching the official guide or video on how to use it. Enjoy your kimono more easily with the "Dates knees".