About Us A4 Sterling (Leisure Hire) provides a wide and diverse range of Services, entertainments and leisure equipment to rent, for conferences, promotions, events or a function, both national and international. With over 20 years in the leisure market and 25 years in the hire industry, we have an extensive database of almost every conceivable act or entertainment from the normal to the diverse. Our fully maintained equipment for hire is continually up-dated and new ideas for activities are continually assessed.