Shockles® by Davis Instruments
  Shockles products are U.S. designed and tested to reduce shock loads that commonly occur around boats. On a dock or mooring line, tensions are constant from tidal surges, wakes, winds or currents. Shockles are also found outside the marine industry—anywhere loads are constant or extreme. Shockles are commonly used for towing, securing loads, or in cases where a metal band or rope is suddenly loaded up. 

Shock Absorbing Solutions
  LineSnubber, AnchorSnubber and DockShockle all feature a patented line limiter and progressive tension design to ease constant or sudden shock loads. Minimizing shock loads increases safety and adds to the longevity of mooring lines, dock lines and anchor lines. Stress on the boat and attachment points are also greatly reduced. Shockles are made with UV resistant nylon webbing sewn over the patented internal line limiter and elastomer system. 316 stainless steel hardware is used for strength, convenience and durability. 

D2420 AnchorSnubber™, Black, 20" (51 cm)
  Safely absorbs shock loads and helps keep your anchor set. Helps your boat ride comfortably at anchor, even in rough anchorages, adverse currents, or strong winds.

  AnchorSnubber helps your boat ride comfortably at anchor, even in rough anchorages, adverse currents, or strong winds. No more chain noise keeping you awake! It attaches directly to chain, rope anchor rode, or anchor snubber line. 

Includes:

• AnchorSnubber with two 316 stainless captive key pin shackles. Fits most anchor chains. Webbing is 20" (51 cm) long.