The Dunlop HotMelt Pro is back! With hotmelt, a unique heat-reactive, thermoplastic liquid which produces a molten skin that is layered over the whole racket frame. When this is cooled, it cures to create:
Increased stiffness for ultimate power
Superior consistency for unbeatable control and feel
Intense fibre strength for maximum durability
140g unstrung weight. 
Loved for its durability