Fendock's Telescopic Deep Water Kit 4' Wide is compatible with Fendock's Truss dock and Frame dock. Constructed of structural tubular aluminum 6063-T4 extrusion, our telescopic deep water stabilizer can be used on Fendock stationary pipe docks in water depths ranging from 1' to 6.5'. It easily self-adjusts when leveling your dock - just loosen the lever nut, level your dock and tighten the lever nut.