Recombinant Anti-CD64 x Anti-GD2 Bispecific Antibody (Tandem Fab) is designed to be expressed as three chains derived from the variable domains of anti-CD64 and anti-GD2 parental antibodies. It contains a His-tag for affinity purification. And the two Fd regions are connected by a flexible linker. This BsAb can retarget neutrophils cells to tumor cells. It is designed for the research of Neuroblastoma; Osteosarcoma; Melanoma; Solid tumors therapy.