This genuine leather collar is sometimes called the "loop collar" due to the weaving of leather & metal creating in a loop fashion. You will be the most trendy one at the S&M club. It is also great for sissy.

The width is 3.7 cm, full length is 60.0 cm. The diameter of O ring is 4.6 cm. The collar is adjustable, outside perimeter is between 53 cm to 61 cm.