An exemplary embodiment of a leash generally includes an elastic core and at least one loop or eyelet having an opening that allow an extra clip to be attached near the handle. The clip may be used to selectively gather a portion of the leash in a loop to thereby shorten the effective length of the leash. The extra clip may be used to attach the leash to an object without detaching the leash from the pet's collar. Both ends of the leash may have hooks for releasable attachment to a pet collar and/or to a handle. The handle may also be attached to a loop in the middle of the leash for converting the leash into two shorter connected leashes for walking two pets. A single handle may further be attached to two leashes to allow four pets to be walked concurrently and tangle-free while using the single handle.