Small Dog Bark Collar Rechargeable - Anti Barking Collar For Small Dogs - Smallest Most Humane Stop Barking Collar - Dog Training No Shock Bark Collar Waterproof - Safe Pet Bark Control Device Theyre fine yet very strong tightly-woven braided nylon that keeps its good looks  an ideal show choke. Available in even sizes from 10 up to 26. 3/16 Wide. Inside diameter of ring is 3/8.