You can customize each collar according to your own choice. Please message us the sizes, color and empty channel width of the 30 collars once you purchase. Or Leave a note during the purchase mentioning the details of the collars.
Channel widths - 4 mm , 6 mm, 8 mm , 10 mm and 12 mm. SS Hardware.
Sizes of the collars are taken from start of the leather (Near Buckle) to the end punch hole. Sizes you can choose are from 8'' to 22''.