A comprehensive mechanics measurement set for lab use. Contents: - Directing lath 1 piece. - Carriage 1 piece. - Stopwatch with two sensors 1 piece. - Support pillar 1 piece. - Support base. 1 piece. - Muff with two studs 1 piece. - Groove bracket 1 piece. - Arched groove 1 piece. - Lever with an axis and two balance weights, 1 piece. - Immobile block 1 piece. - Mobile block 1 piece. - Plastic mat 1 piece. - Weight 4 pieces. - Steel ball 1 piece. - Hook for loading on the lever 2 pieces. - Sheet of transfer paper 1 piece. - Tread on the framework 1 piece.