Prevents your kimono and yukata collar from falling out. Velcro strap is attached for one-touch fastening. Easy to put on and take off, and it wont loose. It is elastic and does not feel tight, making it difficult to become uncomfortable, and fits gently to the body. Can be used at the bottom of a kimono (yukata) or square sash. Fasten the kimono with the magic belt first, and the belt will become easy to tie it. Thin and will not protrude from the square sash. It is made of rubber, so it can be stretched and attached with a Velcro belt, making it easy to use. The backside is also sponge rubber, so it does not slip easily. Can be used as a replacement for waist straps. No knots and no cords wiggle in, comfortable to wear.