Ski binding comprising: - a toe binding and a heel binding configured to be operatively connected to a ski at an upper surface of said ski; - a blocking and adjusting mechanism reversibly actuatable by the user between a blocking position, at which said toe binding and said heel binding are solidly connected with said ski in a fixed position, and a release position, at which said toe binding and said heel binding are free to slide with respect to said ski; wherein said blocking and adjusting mechanism comprises: - a blocking plate solidly connectable with said ski and comprising first blocking means; - a blocking and adjusting rod having opposite first and second ends (61, 62), said blocking and adjusting rod being solidly connected with said heel binding at said first end and being slidingly coupled to said blocking plate at a third portion distally positioned with respect to said first end, said blocking and adjusting rod comprising second blocking means at said third portion, characterised in that said first and second blocking means (53, 65) are arranged on surfaces (52, 64) of said blocking plate and of said blocking and adjusting rod, which are parallel to the upper surface of said ski, when said ski binding is arranged on said ski; wherein said blocking and adjusting mechanism comprises: - one or more blocking wings (7, 8) elastically deformable by bending, said blocking wings comprising a third free end (71, 81) and a fourth constrained end (72, 82), opposite to said third end and solidly connected to said toe binding, said blocking wings comprising third blocking means (75, 85) that are reversibly coupleable with said first and second blocking means (53, 65); - an operation lever solidly connected to said toe binding and comprising an actuation surface coupleable with said blocking wings (7, 8), said operation lever being reversibly movable between: - a first operation position corresponding to a release position of said blocking and adjusting mechanism, in which said actuation surface is decoupled from said blocking wings (7, 8) and said third blocking means (75, 85) are decoupled from said first and second blocking means (53, 65); and - a second operation position, corresponding to a blocking position of said blocking and adjusting mechanism, in which said actuation surface is coupled with said blocking wings (7, 8) and said third blocking means (75, 85) are engaged with said first and second blocking means (53, 65). - a toe binding and a heel binding configured to be operatively connected to a ski at an upper surface of said ski; - a blocking and adjusting mechanism reversibly actuatable by the user between a blocking position, at which said toe binding and said heel binding are solidly connected with said ski in a fixed position, and a release position, at which said toe binding and said heel binding are free to slide with respect to said ski; wherein said blocking and adjusting mechanism comprises: - a blocking plate solidly connectable with said ski and comprising first blocking means; - a blocking and adjusting rod having opposite first and second ends (61, 62), said blocking and adjusting rod being solidly connected with said heel binding at said first end and being slidingly coupled to said blocking plate at a third portion distally positioned with respect to said first end, said blocking and adjusting rod comprising second blocking means at said third portion, - a blocking plate solidly connectable with said ski and comprising first blocking means; - a blocking and adjusting rod having opposite first and second ends (61, 62), said blocking and adjusting rod being solidly connected with said heel binding at said first end and being slidingly coupled to said blocking plate at a third portion distally positioned with respect to said first end, said blocking and adjusting rod comprising second blocking means at said third portion, - one or more blocking wings (7, 8) elastically deformable by bending, said blocking wings comprising a third free end (71, 81) and a fourth constrained end (72, 82), opposite to said third end and solidly connected to said toe binding, said blocking wings comprising third blocking means (75, 85) that are reversibly coupleable with said first and second blocking means (53, 65); - an operation lever solidly connected to said toe binding and comprising an actuation surface coupleable with said blocking wings (7, 8), said operation lever being reversibly movable between: - a first operation position corresponding to a release position of said blocking and adjusting mechanism, in which said actuation surface is decoupled from said blocking wings (7, 8) and said third blocking means (75, 85) are decoupled from said first and second blocking means (53, 65); and - a second operation position, corresponding to a blocking position of said blocking and adjusting mechanism, in which said actuation surface is coupled with said blocking wings (7, 8) and said third blocking means (75, 85) are engaged with said first and second blocking means (53, 65). - a first operation position corresponding to a release position of said blocking and adjusting mechanism, in which said actuation surface is decoupled from said blocking wings (7, 8) and said third blocking means (75, 85) are decoupled from said first and second blocking means (53, 65); and - a second operation position, corresponding to a blocking position of said blocking and adjusting mechanism, in which said actuation surface is coupled with said blocking wings (7, 8) and said third blocking means (75, 85) are engaged with said first and second blocking means (53, 65).