Suitable for knitted underwear, T-shirts, sportswear, etc. Features an overlock seam presser (reverse seam type) device, which can resew the overlock seam created by the overlock sewing machine and reverse the seam to one side, making the seam stronger and smoother, increasing the appearance and comfort of the garment. For example, for overlock seams at the collar, sleeves, and cuffs of underwear, sportswear, and T-shirts.