[Color]: black, red, camel [Size]: The elastic width at the back is 6 cm, the width of the front buckle is 7.5 cm, and the total length is about 70 cm. It can be extended to about 80 cm with a little force (measured by a hand tailor ruler, a slight error is purely normal) [Material]: PU (leather) + metal accessories + woven cloth (elastic band)