Metering and mixing device, comprising i. a cartridge holder, comprising (a) a reception container (1.1) for multichamber cartridges, and (b) a compressed air connection (1.2) and a connection (1.3) for an application device, characterized in that (c) the reception container (1.1) has an internal tube (1.4) which is arranged coaxially to the walls of the cartridge holder and which is equipped with static mixing elements (1.5), the metering and mixing device comprising ii. a multichamber cartridge for the cartridge holder according to i., said multichamber cartridge comprising the following portions: an upper portion (2.1), comprising a directional valve (2.1.1); a middle portion (2.2), the center of which is configured in the direction of the longitudinal axis as a tubular empty space (2.2.1), and the tubular empty space (2.2.1) is surrounded by at least two chambers (2.2.2 and 2.2.3), the chambers being arranged in a tubular manner and in the direction of the longitudinal axis of the cartridge, and adjacent chambers being separated from one another by a common partition (2.2.4), and each chamber (2.2.2 and 2.2.3) being connected to the upper portion (2.1) in each case via at least one orifice (2.2.5); and a lower portion (2.3) which comprises a piston (2.3.1 and 2.3.2) for each of the chambers, the pistons (2.3.1 and 2.3.2) closing off the chambers (2.2.2 and 2.2.3), leak-tight, from below and being connected to one another via cutting devices (2.3.3), and the cutting devices (2.3.3) being arranged such that they can sever the common partition (2.2.4) of in each case adjacent chambers (2.2.2 and 2.2.3) when the pistons (2.3.1 and 2.3.2) are displaced in the direction of the upper portion (2.1), the multichamber cartridge being arranged in the cartridge holder such that the tubular empty space (2.2.1) of the multichamber cartridge is filled with a form fit by the tube (1.4) of the cartridge holder, and the outer wall (2.2.6) of the middle portion (2.2) of the multichamber cartridge bears with a form fit against the inner wall (1.1.1) of the cartridge holder. i. a cartridge holder, comprising (a) a reception container (1.1) for multichamber cartridges, and (b) a compressed air connection (1.2) and a connection (1.3) for an application device, characterized in that (c) the reception container (1.1) has an internal tube (1.4) which is arranged coaxially to the walls of the cartridge holder and which is equipped with static mixing elements (1.5), the metering and mixing device comprising (a) a reception container (1.1) for multichamber cartridges, and (b) a compressed air connection (1.2) and a connection (1.3) for an application device, characterized in that (c) the reception container (1.1) has an internal tube (1.4) which is arranged coaxially to the walls of the cartridge holder and which is equipped with static mixing elements (1.5), the metering and mixing device comprising ii. a multichamber cartridge for the cartridge holder according to i., said multichamber cartridge comprising the following portions: an upper portion (2.1), comprising a directional valve (2.1.1); a middle portion (2.2), the center of which is configured in the direction of the longitudinal axis as a tubular empty space (2.2.1), and the tubular empty space (2.2.1) is surrounded by at least two chambers (2.2.2 and 2.2.3), the chambers being arranged in a tubular manner and in the direction of the longitudinal axis of the cartridge, and adjacent chambers being separated from one another by a common partition (2.2.4), and each chamber (2.2.2 and 2.2.3) being connected to the upper portion (2.1) in each case via at least one orifice (2.2.5); and a lower portion (2.3) which comprises a piston (2.3.1 and 2.3.2) for each of the chambers, the pistons (2.3.1 and 2.3.2) closing off the chambers (2.2.2 and 2.2.3), leak-tight, from below and being connected to one another via cutting devices (2.3.3), and the cutting devices (2.3.3) being arranged such that they can sever the common partition (2.2.4) of in each case adjacent chambers (2.2.2 and 2.2.3) when the pistons (2.3.1 and 2.3.2) are displaced in the direction of the upper portion (2.1), an upper portion (2.1), comprising a directional valve (2.1.1); a middle portion (2.2), the center of which is configured in the direction of the longitudinal axis as a tubular empty space (2.2.1), and the tubular empty space (2.2.1) is surrounded by at least two chambers (2.2.2 and 2.2.3), the chambers being arranged in a tubular manner and in the direction of the longitudinal axis of the cartridge, and adjacent chambers being separated from one another by a common partition (2.2.4), and each chamber (2.2.2 and 2.2.3) being connected to the upper portion (2.1) in each case via at least one orifice (2.2.5); and a lower portion (2.3) which comprises a piston (2.3.1 and 2.3.2) for each of the chambers, the pistons (2.3.1 and 2.3.2) closing off the chambers (2.2.2 and 2.2.3), leak-tight, from below and being connected to one another via cutting devices (2.3.3), and the cutting devices (2.3.3) being arranged such that they can sever the common partition (2.2.4) of in each case adjacent chambers (2.2.2 and 2.2.3) when the pistons (2.3.1 and 2.3.2) are displaced in the direction of the upper portion (2.1),