A back spin wedge to make a golf ball rolls backward after the golf ball hit the ground is provided. The back spin wedge of the current application is equipped with at least one additional blade of thickness 1/16 inch. Additional blades are attached on the front face of a base wedge. Various loft angle, such as, 48 degree, 52 degree, 64 degree are also used for the current application. The additional blade of the current application is made of, including but not limited to, poly urethane, ethylene-propylene co-polymer, silicon rubber, natural rubber, stainless steel, titanium oxide, aluminum, and carbon steel.