A instrument for doing vent in sides of a garment behind clothes

The utility model discloses an instrument for doing vent in sides of a garment behind clothes, include: the bottom plate, it divide into left bottom plate, right bottom plate, all open " L " shape fluting that is used for making clothes back seam and slit upper end on left side bottom plate, the right bottom plate, left side bottom plate is connected with right bottom plate turnable, door front ofa garment clamp plate, its turnable connects on left bottom plate, door front of a garment clamp plate is including door front of a garment first layer clamp plate and door front of a garment secondfloor clamp plate, all open the slash fluting that is used for making left slit pivot angle on the bottom plate AND gate front of a garment clamp plate of a left side, in front of a garment clamp plate, its turnable connects on right bottom plate, in front of a garment clamp plate include lining front of a garment first layer clamp plate and lining front of a garment second floor clamp plate, allopen the fluting that is us