The RSL Sonic 838 racquet is part of the company’s new collection aimed towards comfort. This racquet is part of the collection with the heaviest head (300 mm balance) to help you obtain more power. It has a flexible shaft for maximum power which can help you overcome technical shortcomings due to catapult effect and its light balance in the head that increases your power. The racquet frame is made to handle large amounts of tension without damage. Up to 13 kg.