Passing boats with high speeds and swells coming from outside bother boat owners at marinas or harbours. High compulsions arise on mooring cleats and fairleads of boats tied without surge absorbing rubbers. Again, squeaks coming from being tied up without rubber reduce the comfort. Most of the surge absorbing rubbers known as elastic does not come back quickly. In fact mostly old sailing ropes with no elasticity are used to be tied up. Here problems like this could be reduced by using surge absorbing rubbers on tying ropes. When it is considered that a boat's life-span mostly passes on tied, the importance of this surge absorbing rubbers is understood better. ULTRA Surge Absorbing Rubbers could be used on chain claws' ropes. Their length is made short and their tip is rolled up to give them the opportunity of passing from head pulley. It is made of neoprene and enduring under sun and in sea water. More than one rubber could be used one after the other when more elasticity wanted. It does not come off under extra forces. However little front-tightened could remain on. It works excellent in this condition.