Sturdy, flat, 3/4"-wide Resco? Nylon Grooming Loops feature a locking square plastic slide clasp. The easy-to-use clasp releases quickly for easy adjustment, yet stays securely on the dog?s neck. The black loop is available in the lengths listed below. The 22? length accommodates dogs with necks up to 33" or 34". Lengths may be combined for quantity discounts.