Mountain Rope Choke Collar 22 Inch - Hawaiian Blue 22 Inch Double Braided Nylon Rope Collar Aluminum Ferrules and Stong Construction - Ultra lightweight Buy collar that is 1-2 inches larger than dog's neck size. To view other colors & sizes - Click above on Other Products by National Leash. Colors will not bleed - Rope 8 mm thick - Helps block heat buildup under collar.