Mountain Rope Choke Collar 16 Inch - Hawaiian Blue- Small to Medium Dogs 16 Inch Double Braided Mountain Rope Collar Aluminum Ferrules and Strong Construction - Lightweight Buy collar that is 1-2 inches larger than actual 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.