This system has a movement device incorporated. The mounting is very fast and precise due to the special adaptor specific for every kind of profiles. The martellina or embedded handle could be fixed before window/door installing, resolving the problem of windows/door transportation, avoiding the handle hitting and scratching, more economising also the space and increasing the transportation capacity. The "FAST LOCK" is suitable also for the rounded profiles because of shaped adaptor. Body in galvanised steel strikers, adaptors in nylon, zamak and lnox fixing screws.