Abstract: A unit for cushioning and at least partially absorbing shock motions for use with marine or water equipment whereby wave and water motion is absorbed to eliminate shock wave effects. The unit includes a tension spring device extensible upon movement of the marine device for which cushioning is desired with the extension being to a limited amount and thereafter provide tight line or direct connection for uses such as retrieving an anchor or pulling in a moored boat. The unit is useable in anchoring boats and other objects in various desired positions where the desired effect is a smooth ride upon the water surface.