Ergo comfort elastic shock absorber lead extension ergo comfort elastic shock absorber dog lead extensionthe ergo comfort shock absorber dog lead extension helps to controlnbsp pull and traction it helps reduce the sudden trauma to your dogs neck and your shoulder if he suddenly lunges or if your lead gets caught on somethingthe extension has a ring one end to attach to your lead clip and a clip the other end to attach to your dogs collarnbsplength 145quot approx width 1quot approxcolour greymax