This lead is meant for dogs under 30 lbs. The nylon lead thickness is 3/16" with a length of about 4'. 
This is used as an all-in-one-type lead with a neck loop, a bead to slide down to tighten around the neck, and a swivel so the lead will not twist up if the dog turns.
The martingale - This is a more secure type lead, particularly for puppies who might try to back out of the lead. The strap will match the cord color. The martingale strap is 8" long.
The kindness part of this lead is a smooth satin pad, gentle on hair, and very securely attached to