A shock absorbing grip for the handle of a tennis racquet or golf club having a polyurethane layer bonded to a felt layer. The bonded-together layers are configured as a strip which is wrapped about the handle with the side edges being formed with recessed reinforcement side edges which are tightly butted...http://www.google.es/patents/US5910054?utm_source=gb-gplus-sharePatente US5910054 - Grip for hollow golf club shafts