Gaskets for Waring Cloverleaf shaped jars. The hole in the bottom of the blender jar measures 3/4 inch across. Fits models that begin with MBB, fits all 50th and 60th Anniversary models, models that begin with 5000, begin with R500, begin with B5000, begin with R600 and begin with 6000. Includes two gaskets. Save 5 percent versus ordering individually.