Impulse sterling is the official supplier for the chinese national weight lifting team the impulse sterling glute ham bench is a new style bench from impulse the equipment is built to meet the demands of high use environments but also has a simple and user friendly design making your workouts effective and enjoyable warranty of the impulse sterling glute ham bench main frames life time moving arms 2 years linear bearings springs adjustments 1 years hand grips upholstery pads and rollers