Dimitri Kaijser (Holland) – A full time tennis racquet stringer for Tecnifibre at many of the ATP/WTA tour events, owner of rackets specialist shop in Holland Rackets2support. Member of ERSA (European Racket Stringers Association) with MRT (Master Racket Technician), Pro Stringer and Master of Rackets Sports qualifications. Here is a video of Dimitri talking about SERGETTI.