The new Deltacore material makes the Delta Core 3 into a real power racquet a racquet that is full of energy and equally popular with players of all levels of ability. The new Speed Grommets enlarge the sweet spot and the swing of strings. The Double Rail design ensures additional stability and supports a style of play that is both dynamic and controlled. Recommended for 2.5 4.5 level players.Headsize110 Length27.6 Beam Width26 28mm Weight Strung290g10.2 oz ColorsSilverBlackRed CompositionConstructionDelta Core, DNX, Carbon, Fiberglass String PatternMains X Crosses16 x 19 PCP Recommended String Tension48 58 lbs Power LevelHigh Frame TechnologyDouble Rail Technology, Delta Core Technology Handle TechnologySensor Plus Handle System Swing TypeShort and slow strokes